0. Personal Details

1. Universities Attended and Academic Qualifications

2. Awards, Honours, and Grants

3. Fields of Professional Interest

4. Positions Held

a) Permanent Positions

b) Visiting Positions

5. Teaching Experience

6. Administrative and Organisational Experience

7. Publications

a) Papers

b) Monographs and Books

c) Works Edited

d) Reviews

e) Yet to appear

f) Papers Given at Conferences and Learned Societies

8. Current Research Projects

9. Other Relevant Activities

a) Positions in Professional Societies

b) Work for Journals

c) Community Activities

d) Media Activities

e) Dramatic Activities

f) Student Activities

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0. Personal Details

Name:                          Graham George PRIEST

Date, place of birth:    14th November 1948; London, England

Citizenship:                Joint British/Australian


Department of Philosophy

Graduate Center, CUNY

365 5th Av

NY, NY 10016



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  1. Universities Attended and Academic Qualifications:

l967-70            St. John’s College, Cambridge University

Parts lA, IB, Maths Tripos

Part 2, Moral Science Tripos

B.A., 1970

M.A., l974

 l970-71            Bedford College, London University

M.Sc. (with distinction), 1971

Subject:  mathematical logic

 l971-74            London School of Economics, London University

Ph.D. (mathematics), 1974

Subject:  Logic and the philosophy of mathematics

Thesis title:     Type theory in which variables range over predicates

1985                University of Western Australia

Computer Science 100,  A+

2002                University of Melbourne


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  1. Awards, Honours and Grants

1988    President, Australasian Association for Logic.

1989    President, Australasian Association of Philosophy.

1991     Elected Life Member, Clare Hall, Cambridge.

1995    University of Queensland, Humanities Group Research Grant for Outstanding  Researcher: $6,000.

1995    Elected Fellow, Australian Academy of Humanities.

1996-2009       Chair of the Council, Australasian Association of Philosophy.

1997      Australian Research Council Large Grant (with Dominic Hyde): $38,500.

1998-2003 First Vice-President, International Union for Logic, Methodology and the Philosophy of     Science

1998      Australian Research Council Small Grant: $8,000.

1999      British Academy  Travel Grant, 1,400 pounds stg.

2004   Australian Research Council, Discovery Grant (with Allen Hazen and Greg Restall), $110,000.

2008 Made Fellow of Ormond College, Melbourne,

2008-2013 Australian Research Council, Australian Professorial Fellowship, $950,000.

2010-2013 Australian Research Council, Discovery Grant (with Greg Restall), $300,000.

2012 Humboldt Fellowship, 60,000 Euro, held at the Ruhr University of Bochum, 2013.

2012 Ormond Medal (for service to Ormond College).

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  1. Fields of Professional Interest

My central field of professional interest is logic (both mathematical and philosophical) and related subjects.  The related subjects cover a fairly wide range, and include: metaphysics (East and West), the  philosophy  of mathematics, the history  of  philosophy (East and West).  Many other areas of philosophy interest me, and I have both published and taught in several areas outside this area of specialisation.

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  1. Positions Held

a) Teaching and Research Positions:

  • l974-1976        Temporary Lecturer,   Department   of   Logic   and   Metaphysics,   University   of   St. Andrews, Scotland
  • l976-l979:        Lecturer, Department of Philosophy,  University of Western Australia
  • l979-1987:       Senior   Lecturer,   Department   of   Philosophy,   University   of    Western Australia
  • l987-1988:       Associate  Professor,  Department  of  Philosophy,  University  of   Western Australia
  • 1988-2000 : Professor, Department of Philosophy, University of Queensland
  • 2000-2013 : Arché Professorial Fellow, University of  St. Andrews, Scotland
  • 2000-2013:  Boyce Gibson Professor of Philosophy,  University of Melbourne
  • 2013- : Boyce Gibson Professor Emeritus, University of Melbourne
  • 2009- : Distinguished Professor, Graduate Center, City University of New York

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b) Visiting Positions:

  • Dec 77-Feb 78: Visiting Fellow, Department of Philosophy, Research School of Social Sciences, Australian National University
  • Dec 81-Feb 82: Visiting Fellow, Department of Philosophy, Research School of Social Sciences, Australian National University
  • March l982: Visiting Lecturer, Institute of Philosophy, Bulgarian Academy  of Science, Sofia, Bulgaria
  • Apr 82-Dec 82: Visiting   Professor, Department   of   Philosophy, University    of Pittsburgh
  • Feb 1986: Visiting Lecturer   Institute of Philosophy, Bulgarian Academy of Science, Sofia, Bulgaria
  • Feb 1986: Visiting Lecturer, Section of Logic, Polish Academy of Sciences, Łodz, Poland
  • July 1987: Research Fellow, Human Science Research Council, South Africa
  • Jan 1988: Project Visitor, Automated Reasoning Project, Research School  of Social Sciences, Australian National University
  • Dec 1989: Visiting Lecturer, Soviet Academy of Sciences, Moscow
  • 1990:  Visiting Fellow, Clare Hall, Cambridge University
  • Sept 1994: Visiting Professor, Institute of Advanced Studies, University of Sao Paulo
  • Oct-Nov 1994: Visiting Professor, Department of Philosophy, Indiana University, Bloomington
  • Jan-Dec 1997: Visiting Scholar, Graduate Center, City University of New York
  • Jan-Dec 1997: Visiting Scholar, Department of Philosophy, New York University
  • August-September 1997: Visiting Professor, University of Uppsala
  • Jan. 2001: Visiting Professor, Central Institute for Higher Tibetan Studies, Sarnath, India.
  • July-August 2002: Visiting Lecturer, Sino-British-Australian Summer school in Philosophy, Chengdu, China.
  • June-August, 2004: Visiting Scholar, Department of Philosophy, Kyoto University
  • Sept-Dec, 2004: Visiting Scholar, Department of Philosophy, University of California at Berkeley
  • Jan. 2005: Visiting Professor, Central Institute for Higher Tibetan Studies, Sarnath, India.
  • Feb.-June 2008 Visiting Professor, Graduate Faculty of Letters, Kyoto University
  • July 2013 – December 2013, Humboldt Fellow, Department of Philosophy II, Ruhr University of Bochum.
  • May 2015: Shinhan Visiting Professor, Yonsei University, Seoul.
  • February-March 2019: Visiting Professor, University of Turin, Italy


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  1. Teaching Experience


I have taught (lectured or tutored) in nearly all branches of philosophy at a first-year level.

I have taught the following subjects at a more advanced level: philosophical logic; philosophy of language;   mathematical   logic;   history  and  philosophy  of science;   philosophy   of   religion; metaphysics; philosophy of mind; feminism; political philosophy; cognitive science; Asian philosophy; Buddhist philosophy; the history of philosophy.

I have supervised honours and post-graduate students in a number of the above areas,  and  been external examiner for a number of candidates for research degrees.

I have been  active  in  setting  up  a  number  of  new  courses,  as  well  as  the  whole   teaching programmes in Cognitive Science at the Universities of Western Australia and Queensland.

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  1. Administrative and Organisational Experience

I was Head of Department at Melbourne University from 2001 to 2003, and Head of the School of Philosophy at the University from 2007 to 2008.  I was also Head of Department for several terms at the University of Queensland.  Over the years, I have sat on many university boards and committees including:  Faculty Boards, University Academic Board, Promotion Committees, Small Grants Committees, Faculty Executives, and  numerous  ad   hoc committees.

I was the coordinator of the Cognitive Science Programme at the University of Queensland for two years.

I   have sat on  a  number  of  committees  reviewing  Philosophy  Departments   at   Australasian Universities.

I organised the 1983 meeting of the Australasian Association for Logic, the 1988 and 2004 meetings of the Australasian Association of Philosophy, and the World Congresses on Paraconsistency in Gent, 1997 and Melbourne 2008.

With others, I founded the Western Australian Society for the History and Philosophy of Science, the Brisbane Philosophy Society, the New York Philosophical Logic Group, and annual meetings of the philosophy departments of the Universities of Queensland and New England, and the regular meetings of the Logic Groups of the Universities of Melbourne and Adelaide.

See also Section 9, esp. a), b).

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  1. Publications

a) Papers

  1. ‘The Conventionalist Philosophy of Mathematics’, Bertrand Russell Memorial Logic Conference, Denmark l97l, eds. J. Bell et al, Leeds l973, pp. 115-l32.
  2. ‘Gruesome Simplicity’, Philosophy of Science l976, 43, 432-7.
  3. ‘Modality as a Metaconcept’, Notre Dame Journal of Formal Logic l976, XVII, 401-414.
  4. ‘The Formalization of Ockham’s Theory of Supposition’ (with S. Read), Mind l977, LXXXVI, 109-113.
  5. ‘A Refoundation of Modal Logic’, Notre Dame Journal of Formal Logic l977, XVIII, 340-354.
  6. ‘Logic of Paradox’, Journal of Philosophical Logic l979, 8, 2l9-24l. Translated into French as ‘La Logique du Paradoxe’, Philosophie 94 (2007), 72-94.
  7. ‘Indefinite Descriptions’, Logique et Analyse l979, 22, 5-21.
  8. ‘A Note on the Sorites Paradox’, Australasian Journal of Philosophy l979, 57, 74-75.
  9. ‘Two Dogmas of Quineanism’, Philosophical Quarterly l979, 29, 289-30l.
  10. ‘Sense, Entailment and Modus Ponens’, Journal of Philosophical Logic l980, 9, 4l5-35.
  11. ‘Merely Confused Supposition’ (with S. Read), Franciscan Studies l980, 40, XVIII, 265-297.
  12. ‘Ockham’s Rejection of Ampliation’ (with S. Read), Mind l98l, 90, 274-9.
  13. ‘The Argument from Design’, Australasian Journal of Philosophy l98l, 59, 422-43.
  14. ‘The Logical Paradoxes and the Law of Excluded Middle’, Philosophical Quarterly l983, 33, l60-65.
  15. ‘To be and not to be: Dialectical Tense Logic’, Studia Logica l982, 4l, 249-686; translated into Bulgarian and reprinted in Filosofska Missal XL(8), 1984, 63-76.
  16. ‘Lessons from Pseudo-Scotus’ (with R. Routley), Philosophical Studies l982, 42, l89-99.
  17. ‘The Truth Teller Paradox’ (with C. Mortensen), Logique et Analyse l98l, 95-6, 381-8.
  18. ‘An Anti-Realist Account of Mathematical Truth’, Synthese l983, 57, 49-65. Reprinted as ch. 8 of D. Jacquette (ed.) Philosophy of Mathematics, Blackwell, 2002.
  19. ‘Logic of Paradox Revisited’, Journal of Philosophical Logic, l984, l2, 153-179.
  20. ‘Semantic Closure’, Studia Logica l984, 43, 117-29.
  21. ‘Introduction to Paraconsistent Logic’ (with R. Routley), Studia Logica l983, 44, 3-16.
  22. ‘Hypercontradictions’, Logique et Analyse 1984, 107, 237-43.
  23. ‘Hume’s Final Argument’, History of Philosophy Quarterly 1985, 2, 349-352.
  24. ‘Inconsistencies in Motion’, American Philosophical Quarterly 1985, 22, 339-46.
  25. ‘Contradiction, Belief and Rationality’, Aristotelian Society 1985/6, LXXXVI, 99-116.
  26. ‘Tense and Truth Conditions’, Analysis 1986, 46, 162-6.
  27. ‘The Logic of Nuclear Armaments’, Critical Philosophy 1986, 3, 107-113.
  28. ‘Unstable Solutions to the Liar Paradox’ in Self Reference: Reflections and Reflexivity, S.J. Bartlett and P. Suber (eds.), Nijhoff, 1987.
  29. ‘Tense, Tense and TENSE’, Analysis 47, 1987, 177-9.
  30. ‘Reasoning about Truth’, Technical Report TR-ARP-2/88, Automated Reasoning Project, Australian National University, 1988.
  31. ‘Consistency by Default’, Technical Report TR-ARP-3/88, Automated Reasoning Project, Australian National University, 1988.
  32. ‘When Inconsistency is Inescapable’, South African Journal of Philosophy, 7, 1988, 83-89.
  33. ‘Primary Qualities are Secondary Qualities Too’, British Journal for the Philosophy of Science, 1989, 40 , 29-37.
  34. ‘Contradiction, Assertion, and “Frege’s Point”‘ (with R. Sylvan), Analysis, 49, 1989, 23-6.
  35. ‘Reasoning About Truth’, Artificial Intelligence, 39, 1989, 231-44.
  36. ‘Denyer’s $ not Backed by Sterling Arguments’, Mind, 98, (1989), 265-8.
  37. ‘Classical Logic Aufgehoben‘ in Paraconsistent Logic, G. Priest, R. Routley and   J. Norman (eds.), Philosophia Verlag, 1989.
  38. ‘Reductio ad Absurdum et Modus Tollendo Ponens’ in Paraconsistent Logic, G. Priest, R. Routley and J. Norman (eds.), Philosophia Verlag, 1989. Reprinted in Rumanian in I. Lucica (ed.), Ex Falso Quodlibet: studii de logica paraconsistenta (in Romanian), Editura Technica, 2004.
  39. ‘Relevance, Truth and Meaning’ (with J. Crosthwaite) in Directions of Relevant Logic, R. Sylvan and J. Norman (eds.), Nijhoff, 1989.
  40. ‘Gegen Wessel’, Philosophische Logik 1989, 2, 109-20.
  41. ‘Dialectic and Dialetheic’, Science and Society 1990, 53, 388-415.
  42. ‘Boolean Negation, and All That’, Journal of Philosophical Logic 1990, 19, 201-15.
  43. ‘Was Marx a Dialetheist?’, Science and Society, 1991, 54, 468-75.
  44. The Nature of Philosophy and its Place in the University, University of Queensland Press, 1991.
  45. ‘Minimally Inconsistent LP’, Studia Logica, 1991, 50, 321-331.
  46. ‘Intensional Paradoxes’, Notre Dame Journal of Formal Logic 32 (1991), 193-211.
  47. ‘The Limits of Thought – and Beyond’, Mind 100 (1991), 361-70.
  48. ‘Simplified Semantics for Basic Relevant Logics’ (with R. Sylvan), Journal of Philosophical Logic, 1992, 21, 217-32.
  49. ‘Goedel’s   Theorem and Creativity’, in Creativity, ed. T. Dartnall, Kluwer   Academic Publishers, 1994. Reprinted with a different introduction as ‘Goedel’s Theorem and the Mind… Again’, in Philosophy of Mind: the place of philosophy in the study of mind, eds. M. Michaelis and J. O’Leary-Hawthorne, Kluwer, 1994.
  50. ‘Another Disguise of the same Fundamental Problems: Barwise and Etchemendy on the Liar’, Australasian Journal of Philosophy, 71 (1993), 60-9.
  51. ‘Yu and Your Mind’, Synthese, 95 (1993), 459-60.
  52. ‘On Time’, Philosophia, 50 (1992), 9-18.
  53. ‘Can Contradictions be True?, II’, Aristotelian Society, Supplementary Volume 67 (1993), 35-54.
  54. ‘Derrida and Self-Reference’, Australasian Journal of Philosophy 72 (1994), 103-11.
  55. ‘Paraconsistent Dialogues’ (with J.McKenzie), Logique et Analyse, 131-2 (1990), 339-57.
  56. ‘The Structure of the Paradoxes of Self-Reference’, Mind 103 (1994), 25-34.
  57. ‘Etchemendy and Logical Consequence’, Canadian Journal of Philosophy 25 (1995), 283-92.
  58. ‘Gaps and Gluts: Reply to Parsons’, Canadian Journal of Philosophy, 25 (1995), 57-66.
  59. ‘What is a Non-Normal World?’, Logique et Analyse 35 (1992), 291-302.
  60. ‘Sorites and Identity’, Logique et Analyse, 135-6 (1991), 293-6.
  61. ‘Is Arithmetic Consistent?’, Mind, 103 (1994), 337-49.
  62. ‘Some Priorities of Berkeley’, Logic and Reality: Essays on the Legacy of Arthur Prior, ed. B. J. Copeland, Oxford University Press, 1996.
  63. ‘The Definition of Sexual Harassment’ (with J. Crosthwaite), Australasian Journal of Philosophy 74 (1996), 66-82. Reprinted in G. Lee Bowie and Meredith Michaels (eds.), 13 Questions in Ethics and Social Philosophy, Harcourt, Brace, Jovanovich, 2nd, 1997.
  64. ‘Paraconsistent Logic’, Encyclopedia of Philosophy, Vol.7, 208-11, ed. E. Craig, Routledge, 1998.
  65. ‘Number’, Encyclopedia of Philosophy, Vol.7, 47-54, ed. E.Craig, Routledge, 1998.
  66. ‘Logic, Nonstandard’,   pp.   307-10, Encyclopedia   of   Philosophy;   Supplement,   ed. D. Borshert, MacMillan, 1996.
  67. ‘On a Paradox of Hilbert and Bernays’, Journal of Philosophical Logic 26 (1997), 45-56.
  68. ‘Everett’s Trilogy’, Mind, 105 (1996), 631-47.
  69. ‘On Inconsistent Arithmetics: Reply to Denyer’, Mind, 105 (1996), 649-59.
  70. ‘Paraconsistent   Logic’, Handbook   of   Philosophical   Logic, Vol. 6, pp. 287 – 393,   eds.   D.Gabbay   and F. Guenthner, 2nd edition, Kluwer Academic Publishers, 2002.
  71. ‘Paraconsistent Logic’, Encyclopaedia of Mathematics; Supplement, ed. M. Hazenwinkle, Kluwer Academic Publishers, 1997, 400-1.
  72. ‘The Trivial Object and the Non-Triviality of a Semantically Closed Theory with Descriptions’, Journal of Applied and Non-Classical Logic, 8 (1998), 171-83.
  73. ‘The Linguistic Construction of Reality’, Exordium 6 (1997), 1-7.
  74. ‘Inconsistent Models of Arithmetic; I Finite Models’, Journal of Philosophical Logic, 26 (1997), 223-35.
  75. ‘What not? A Defence of a Dialetheic Account of Negation’, in D. Gabbay and H. Wansing (eds.), What is Negation?, Kluwer Academic Publishers, 1999.
  76. ‘What Could the Least Inconsistent Number be?’, Logique et Analyse, 37 (1994), 3-12.
  77. ‘Sexual Perversion’, Australasian Journal of Philosophy 75 (1997), 360-72. Translated into Croatian, ch. 9 of I. Primoratz (ed.), Suvremena filozofija seksualnosti, Zagreb: KruZak, 2003.
  78. ‘Paraconsistent Logic’ (with K. Tanaka), Stanford Internet Encyclopedia of Philosophy, created 1996.
  79. ‘Multiple Denotation, Ambiguity and the Strange Case of the Missing Amoeba’, Logique et Analyse, 38 (1995), 361-73.
  80. ‘On   Alternative   Geometries, Arithmetics and Logics,   a   Tribute   to   Łukasiewicz’, Studia Logica 74 (2003), 441-468.
  81. ‘Yablo’s Paradox’, Analysis 57 (1997), 236-42.
  82. ‘Fuzzy Identity and Local Validity’, Monist 81 (1998), 331-42.
  83. ‘Sylvan’s Box’, Notre Dame Journal of Formal Logic 38 (1997), 573-82.
  84. ‘To be and Not to Be – That is the Answer. On Aristotle on the Law of Non-Contradiction’, Philosophiegeschichte und Logische Analyse 1 (1998), 91-130.
  85. ‘Validity’, pp183-206 of A. Varzi (ed.) The Nature of Logic, CSLI Publications, 1999. (European Review of Philosophy, vol. 4). An abbreviated version under the same title appears as pp.18-25 of The Logica Yearbook, 1997, ed. T. Childers, Institute of Philosophy, Czech Republic.
  86. ‘Language, its Possibility, and Ineffability’, pp. 790-794 of P. Weingartner, G. Schurz and G. Dorn   (eds.), Proceedings of the 20th International Wittgenstein   Symposium,   The Austrian Ludwig Wittgenstein Society, 1997.
  87. ‘Negation as Cancellation, and Connexivism’, Topoi 18 (1999), 141-8.
  88. ‘On a Version of one of Zeno’s Paradoxes’, Analysis 59 (1999), 1-2.
  89. ‘Inconsistency and the Empirical Sciences’, in J. Meheus (ed.), Inconsistency in Science, Kluwer Academic Publishers, 2002.
  90. ‘Editor’s Introduction’, Notre Dame Journal of Formal Logic 38 (1997), 481-47.
  91. ‘Motivations for Paraconsistency: the Slippery Slope from Classical Logic to Dialetheism’, in D. Batens et al (eds.), Frontiers of Paraconsistent Logic, Research Studies Press, 2000.
  92. ‘On an Error in Grove’s Proof’ (with K. Tanaka), Logique et Analyse 158 (1997), 215-7.
  93. ‘What’s so Bad about Contradictions?’, Journal of Philosophy 95 (1998), pp. 410-26
  94. ‘Inconsistent   Models of Arithmetic II; the General Case’, Journal of Symbolic Logic 65 (2000), 1519-29.
  95. ‘The Import of Inclosure; some Comments on Grattan-Guinness’, Mind 107 (1998), 835-40.
  96. ‘Dialetheism’, Stanford Internet Encyclopedia of Philosophy, created 1998.
  97. ‘Worlds Apart’, Mind! 2000 (a supplement to Mind 109 (2000)), 25-31.
  98. ‘Perceiving Contradictions’, Australasian Journal of Philosophy 77 (1999), 439-46.
  99. ‘Semantic Closure, Descriptions and Triviality’, the Journal of Philosophical Logic 28 (1999), 549-58.
  100. ‘On the Principle of Uniform Solution: a Reply to Smith’, Mind 109 (2000), 123-6.
  101. ‘Logic: One or Many’ in J. Woods, and B. Brown (eds.), pp. 23-28 of Logical Consequence: Rival Approaches Proceedings of the 1999 Conference of the Society of Exact Philosophy, Stanmore: Hermes, 2001.
  102. ‘Truth and Contradiction’, Philosophical Quarterly 50 (2000), 305-19.
  103. ‘Paraconsistent Belief Revision’, Theoria 68 (2001), 214-28.
  104. ‘Could everything be True?’, Australasian Journal of Philosophy 78 (2000), 189-95.
  105. ‘The Logic of Backwards Inductions’, Economics and Philosophy 16 (2000), 267-85.
  106. ‘Vasil’év and Imaginary Logic’, History and Philosophy of Logic 21 (2000), 135-46.
  107. ‘Geometries and Arithmetics’, pp. 65-78 of P. Weingartner (ed.), Alternative Logics; Do Sciences Need Them?, Springer Verlag, 2003.
  108. ‘Logicians Setting Together Contradictories. A Perspective on Relevance, Paraconsistency, and Dialetheism’, ch. 14 of D. Jacquette (ed.), A Companion to Philosophical Logic, Blackwell, 2002.
  109. ‘Fuzzy Relevant Logic’, Paraconsistency: the Logical Way to the Inconsistent, ed. W. Carnielli et al., Marcel Dekker, 2002.
  110. ‘Why it’s Irrational to Believe in Consistency’, 284-93 of Rationality and Irrationality; Proc. 23rd International Wittgenstein Symposium, eds., B. Brogaard and B. Smith, 2001.
  111. ‘Objects of Thought’, Australasian Journal of Philosophy 78 (2000), 494-502.
  112. ‘Heidegger and the Grammar of Being’, ch. 10 of R. Gaskin (ed.), Grammar in Early 20th Century Philosophy, Routledge, 2001.
  113. ‘Nagarjuna and the Limits of Thought’ (with Jay Garfield), Philosophy East West 53 (2003), 1-21. Reprinted as ch. 5 of J. Garfield, Empty Words, Oxford University Press, 2002.
  114. ‘Paraconsistency and Dialetheism’, pp. 129-204 of Handbook of the History of Logic, Vol. 8, eds. D. Gabbay and J. Woods, North Holland, 2007.
  115. ‘Rational Dilemmas’, Analysis 62 (2002), 11-16.
  116. ‘Meinongianism and the Philosophy of Mathematics’, Philosophica Mathematica 11 (2003), 3-15.
  117. ‘The Hooded Man’, Journal of Philosophical Logic 31 (2002), 445-67.
  118. ‘Where is Philosophy at the Start of the Twenty First century?’, Proceedings of the Aristotelian Society 103 (2003), 85-96.
  119. ‘Consistency, Paraconsistency and the Logical Limitative Theorems’, in Grenzen und Grenzüberschreitungen (XIX Deutscher Kongress für Philoosphie), ed. W. Hogrebe and J. Bromand, Akademie Verlag, 2004.
  120. ‘The Paradoxes of Denotation’, ch. 7 of Self-Reference, eds. T. Bolander, V. F. Hendricks and S. A Pedersen, CLSI Lecture Notes, Stanford University, 2006.
  121. ‘A Site for Sorites’, pp. 9-23 of J. C. Beall (ed.), Liars and Heaps: New Essays on Paradox, Oxford University Press, 2003.
  122. ‘Wittgenstein’s Remarks on Goedel’s Theorem’, ch. 8 of M. Kölbel and B. Weiss (ed.) Wittgenstein’s Lasting Significance, Routledge, 2004.
  123. ‘Inconsistent Arithmetic: Issues Technical and Philosophical’, pp. 273-99 of V. F. Hendricks and J. Malinowski (eds.), Trends in Logic: 50 Years of Studia Logica (Studia Logica Library, Vol. 21), Kluwer Academic Publishers, 2003.
  124. ‘Conditionals: a Debate with Jackson’, ch. 13 of I. Ravenscroft (ed.), Minds, Worlds and Conditionals: Themes from the Philosophy of Frank Jackson. Oxford University Press, 2009.
  125. Spiking the Field Artillery’, in J. C. Beall and B. Armour-Garb (eds.), ch. 3 of Truth and Deflationism, Oxford University Press, 2005.
  126. ‘Problems with the Argument for Fine Tuning’ (with Mark Colyvan and Jay Garfield), Synthese 145 (2005), 325-38.
  127. ‘Words Without Knowledge’, Philosophy and Phenomenological Research 71 (2005), 686-94.
  128. ‘Foreword (Cuivant Inainte)’ to I. Lucica (ed.), Ex Falso Quodlibet: studii de logica paraconsistenta (in Romanian), Editura Technica, 2004.
  129. ‘Chunk and Permeate I: the Infinitesimal Calculus’ (with Bryson Brown), Journal of Philosophical Logic 33 (2004), 379-88.
  130. ‘Intentionality – Meinongianisn and the Medievals’, (with Stephen Read), Australasian Journal of Philosophy, 82 (2004), 421-442.
  131. ‘Logic, Paraconsistent’, in D. Borchert (ed.), Encyclopedia of Philosophy (second edition), Macmillan, 2006, Vol. 7, 105-6.
  132. ‘Logic, Relevant (Relevance)’, in D. Borchert (ed.), Encyclopedia of Philosophy (second edition), Macmillan, 2006, Vol. 8, 358-9.
  133. ‘Motion’, in D. Borchert (ed.), Encyclopedia of Philosophy (second edition), Macmillan, 2006, Vol. 6, 409-11.
  134. ‘The Limits of Language’ in K. Brown (ed.), Encyclopedia of Language and Linguistics, (second edition) Vol.7, 156-9, Elsevier, 2005.
  135. ‘Analetheism: a Phyrric Victory’ (with Brad Armour-Garb), Analysis 65 (2005), 167-73.
  136. ‘Logic, Many-Valued’, in D. Borchert (ed.), Encyclopedia of Philosophy (second edition), Macmillan, 2006, Vol. 5, 688-95.
  137. ‘Logic, Non-Classical’, in D. Borchert (ed.), Encyclopedia of Philosophy (second edition), Macmillan, 2006, Vol. 5, 485-93.
  138. ‘The Proliferation of Non-Classical Logics’, in D. Borchert (ed.), Encyclopedia of Philosophy (second edition), Macmillan, 2006, Vol. 5, 482-4.
  139. ‘Reply to Slater’, pp. 467-74 of J-Y Beziau, W. Carnielli and D. Gabbay (eds.), Handbook of Paraconsistency, College Publications, 2007.
  140. ‘Restricted Quantification in Relevant Logic’, (with JC Beall, R. Brady, A. Hazen, and G. Restall) Journal of Philosophical Logic 35/6 (2006), 587-98.
  141. `What is Philosophy?’, Philosophy 81 (2006), 189-207.
  142. ‘Not so Deep Inconsistency: a Reply to Eklund’ (with JC Beall), Australasian Journal of Logic 5 (2007) 74-84.
  143. ‘The Limits of Knowledge’, Logica Yearbook 2005, M. Bilkova and Ondrej Tomala, Prague, 2006, pp. 165-76, and Philosophy of Uncertainty and Medical Decisions (Bulletin of Death and Life Studies, Vol. 2), Graduate School of Humanities and Sociology, The University of Tokyo, 2006, pp. 53-63.
  144. ‘Beyond the Limits of Knowledge’, ch. 7 (pp. 93-104) of J. Salerno (ed.), New Essays on the Knowability Paradox, Oxford University Press, 2009.
  145. Foreword to the Romanian translation of the second edition of Beyond the Limits of Thought. Pp. 23-25 of Dincolo de limitele gândirri, (trs. Dimitru Gheorghiu), Paralela 45, 2007.
  146. Foreword to F. Berto, Teorie dell’assurdo. I rivali del Principio di Non-Contraddizione, Carocci, 2006.
  147. ‘Analysing of the Iraqi Adventure’, Ormond Papers 22 (2005), 147-50.
  148. ‘A Hundred Flowers’, Topoi 25 (2006), 91-5.
  149. ‘The Way of the Dialetheist: Contradictions in Buddhism’ (with J. Garfield and Y. Deguchi), Philosophy East and West 58 (2008), 395-402.
  150. ‘Logic’, FNews 10 (2007), 5-8. Reprinted with minor amendments in The Dictionary, ed. Giandomenico Sica, Polymetrica,
  151. ‘60% Proof: Proof, Lakatos and Paraconsistency’, (with Neil Thomason), Australasian Journal of Logic 5 (2007), 89-100.
  152. ‘Jaina Logic: a Contemporary Perspective’, History and Philosophy of Logic 29 (2008), 263-278.
  153. ‘How the Particular Quantifier became Existentially Loaded Behind our Backs’, Soochow Journal of Philosophical Studies 16 (2007), 197-213.
  154. ‘Precis of Towards Non-Being’, Review of Metaphysics 74 (2008), 185-90.
  155. ‘Replies to Nolan and Kroon’, Philosophy and Phenomenological Research 74 (2008), 208-14.
  156. ‘Revenge, Field, and ZF’, ch. 9 of JC Beall (ed.), Revenge of the Liar: New Essays on the Paradox, Oxford University Press, 2007.
  157. ‘The Structure of Emptiness’, Philosophy East and West 59 (2009), 467-480.
  158. ‘Many-Valued Modal Logic: a Simple Approach’, Review of Symbolic Logic 1 (2008), 190-203.
  159. ‘The Closing of the Mind: How the Particular Quantifier Became Existentially Loaded Behind our Backs’, Review of Symbolic Logic 1 (2008), 42-55.
  160. ‘The Australasian Association of Philosophy’ (with Eliza Goddard), in G. Oppy and N. Trakakis, A Companion to Philosophy in Australia and New Zealand, Monash University Publishing, 2010.
  161. ‘Mountains are Just Mountains’ (with Jay Garfield), pp. 71-82 of J. Garfield and M. D’Amato (eds.), Pointing at the Moon: Buddhism. Logic and Analytic Philosophy, Oxford University Press, 2009.
  162. Translation of ‘Logic of Paradox’, ‘La Logique du paraqdoxe’, Philosophie 94 (2007), 72-94.
  163. ‘Graham Priest and Diderik Batens Interview Each Other’, The Reasoner 2 (No. 8) (2008), 2-4.
  164. ‘Creating Non-Existents: Some Initial Thoughts’, Studies in Logic, 1 (2008), 18-24.
  165. ‘Neighbourhood Semantics for Intentional Operators’, Review of Symbolic Logic, 2 (2009), 360-373.
  166. ‘Badici on Inclosures and the Liar Paradox’, Australasian Journal of Philosophy 88 (2010), 359-366.
  167. ‘Two Truths: Two Models’, ch. 13 of the Cowherds (eds.), Moonshadows, Oxford University Press, 2010.
  168. ‘The Truth(s) about the Two Truths’, (with T. Tillemans and M. Siderits) ch. 8 the Cowherds (eds.), Moonshadows, Oxford University Press, 2010.
  169. `A Case of Mistaken Identity’, ch. 11, pp. 205-222 of J. Lear and A. Oliver, The Force of Argument, Routledge, 2010.
  170. ‘Not to Be’, ch. 23 of R. Le Poidevin, P. Simons, A. McGonigal, and R. Cameron (eds.), The Routledge Companion to Metaphysics, Routledge 2009.
  171. Translation of ‘Objects of Thought’ into Japanese, in Human Ontology 15 (2009), 1-12. (Trans. S. Yamahuchi.)
  172. ‘Logical Pluralism Hollandaise’, The Australasian Journal of Logic, 6 (2008), 210-14.
  173. ‘Inclosures, Vagueness and Self-Reference’, Notre Dame Journal of Formal Logic 51 (2010), pp. 69-84.
  174. ‘Obituary for Leonard Goddard’, The Australasian Journal of Philosophy 87 (2009) 693-4.
  175. ‘Hopes Fade for Saving Truth’, Philosophy 85 (2010), 109-140.
  176. ‘Non-Transitive Identity’, ch. 23 of R. Dietz and S. Moruzzi (eds.), Cuts and Clouds: Vagueness, its nature and its Logic, Oxford University Press, 2010.
  177. ‘Foreword’ to P. Kabay, On the Plenitude of Truth: a Defense of Trivialism, LAP-LAMBERT Academic Publishing, 2010.
  178. ‘Dualising Intuitionistic Negation’, Principia 13 (2009), 165-89.
  179. ‘The Logic of the Catuskoti’, Comparative Philosophy 1 (2010), 32-54.
  180. ‘Contradiction and the Structure of Unity’, pp. 35-42 of Analytic Philosophy in China, 2009, ed. Yi, Jiang, 2010.
  181. ‘Paradoxical Truth’, New York Times, 28 November 2010.
  182. ‘Quine: Naturalism Unravelled’, pp. 19-30 of M. Dumitru and C. Stoenescu (eds.), Cuvinte, teorii si lucruri: Quine in perspectiva, editura Pelican (Bucharest), 2010.
  183. ‘An Interview with Bodhidharma’, ch. 2 of G. Priest and D. Young (eds.), Beating and Nothingness: Philosophy and the Martial Arts, Open Court, 2010.
  184. ‘Creating Non-Existents’, pp. 107-118 of F. Lihoreau (ed.), Truth in Fiction, Ontos Verlag, 2011.
  185. ‘First-Order da Costa Logic’, Studia Logica 97, (2011), pp.183-198.
  186. ‘Four Corners – East and West’, pp. 12-18 of M. Banerjee and A. Seth (eds.), Logic and Its Applications, Springer, 2011.
  187. ‘Can u do that?’, (with JC Beall and Z. Weber), Analysis 71 (2011), 280-5.
  188. ‘Paraconsistent Set Theory’, ch. 8 of D. DeVidi, M. Hallett, and P. Clarke (eds.), Logic, Mathematics, Philosophy: Vintage Enthusiasms. Essays in Honour of John L. Bell, Springer, 2011.
  189. ‘Against Against Non-Being’, Review of Symbolic Logic 4 (2011), 237-53.
  190. ‘Envelopes and Indifference’ (with Greg Restall), pp. 283-290 in Dialogues, Logics and Other Strange Things, essays in honour of Shahid Rahman, edited by Cédric Dégremont, Laurent Keiff and Helge Rückert, College Publications, 2008.
  191. ‘Realism, Anti-realism and Paraconsistency’, ch. 10 of S. Rahman, G. Primeiero, and M. Marion (eds.), The Realism and Antirealism Debate in the Age of Alternative Logics, Springer, 2012.
  192. ‘A brief remembrance of Michael Dummett’, The Opinionator, New York Times, 4th January, 2012.
  193. ‘A Note on the Axiom of Countability’, Al-Mukhatabat 1 (2012), 23-32;
  194. ‘An Interview with Graham Priest’, pp. 183-198 of G. Oppy and N. Trakakis (eds.), The Antipodean Philosopher, Vol. 2: Interviews with Australian and New Zealand Philosophers, Lexington Books, 2012.
  195. ‘Why Asian Philosophy?’, ch. 18 of G. Oppy and N. Trakakis (eds.), The Antipodean Philosopher, Lexington Books, 2011.
  196. ‘Logically Speaking’, interview with 3AM Magazine,
  197. ‘The Sun may, Indeed, not Rise Tomorrow: a Reply to Beall’, Analysis 72 (2012), 739-41.
  198. ‘Definition Inclosed: a Reply to Zhong’, Australasian Journal of Philosophy, 90 (2012), pp. 1-7.
  199. ‘On the Ternary Relation and Conditionality’ (with Jc Beall, Ross Brady, J. Michael Dunn, A. P. Hazen, Edwin Mares, Robert K. Meyer, Greg Restall, David Ripley, John Slaney, Richard Sylvan), Journal of Philosophical Logic, 41 (2012), pp. 595–612.
  200. ‘The Axiom of Countability’, pp. 164-9 of Philosophy, Mathematics, Linguistics: Aspects of Interaction, Euler International Mathematical Institute, St Petersburg, 2012.
  201. ‘What does the Ternary R Mean?’ pp. 19-24 of Philosophy, Mathematics, Linguistics: Aspects of Interaction, Euler International Mathematical Institute, St Petersburg, 2009.
  202. ‘Between the Horns of Idealism and realism: the Middle Way of Madhyamaka’, in Steven Emmanuel (ed.), A Companion to Buddhist Philosophy, Wiley-Blackwell, 2013.
  203. ‘Mathematical Pluralism’,
Logic Journal of IGPL 21 (2013), pp. 4-14.
  204. ‘Jaina Logic: a Contemporary Perspective’. Pp. 142-93 of M. N. Mitra, M. K. Chakraborty, and S. Sarukkai (eds.), Studies in Logic: A Dialogue Between East and West, Sanctum Books, 2012.
  205. ‘Read on Bradwardine on the Liar’, pp. 155-161 of C. Dutilh Novaes and O. Hjorland (eds.), Insolubles and Consequences: Essays in Honour of Stephen Read, College Publications, 2012.
  206. ‘Vague Inclosures’, ch. 20 (pp. 367-77) of K. Tanaka, F. Berto, E. Mares, and F. Paoli (eds.), Paraconsistency: Logic and Applications, Springer Verlag, 2012.
  207. ‘Lost in Translation: a Reply to Woodward’, Philosophy and Phenomenological Research 86 (2013), pp. 194-9.
  208. `A Prolegomenon to any Planning for the Future’, Ormond Papers 29 (2012), pp. 136.43.
  209. ‘Nāgārjuna’s Mūlamadhyakamakārika’, Topoi 32 (2013), 129-34.
  210. ‘Philosophy Sans Frontieres: Analytic and Continental Philosophy – a View from the East’, ch. 8 of B. Mou and R. Tiezen (eds.), Constructive Engagement of Analytic and Continental Approaches to Philosophy, Brill, 2013.
  211. Czech translation of Garfield and Priest (2003) [113]. Pp. 305-330 of Jiri Holba (ed. and trans.), Nagardzuna: Filosofie Stredni Cesty, Oikoymenh, 2012.
  212. ‘The Martial Arts and Buddhist Philosophy’, pp. 17-28, Royal Institute of Philosophy, Supp. Volume, 73, 2013.
  213. ‘The Parmenides: a Dialetheic Interpretation’, in Plato: the Journal of the International Plato Society 12 (2012). Appeared August, 2013,
  214. ‘A Mountain by any Other Name: a Response to Koji Tanaka’ (with Jay Garfield and Yasuo Deguchi), Philosophy East & West, 63 (2013), pp. 335-43.
  215. ‘Two Plus Two Equals One: a Response to Brook Ziporyn’ (with Jay Garfield and Yasuo Deguchi), Philosophy East & West, 63 (2013), pp. 353-58.
  216. ‘The Contradictions are True – and it’s not Out of This World!: a Response to Takashi Yagisawa’ (with Jay Garfield and Yasuo Deguchi), Philosophy East & West, 63 (2013), pp. 370-72.
  217. ‘Does a Table Have Buddha Nature? A Moment of Yes and No. Answer! But not in Words of Signs: a Response to Mark Siderits’, (with Jay Garfield and Yasuo Deguchi), Philosophy East & West, 63 (2013), pp. 387-98.
  218. ‘Those Concepts Proliferate Everywhere: a Response to Constance Kassor’, (with Jay Garfield and Yasuo Deguchi), Philosophy East & West, 63 (2013), pp. 411-16.
  219. ‘How We Think Madhyamikas Think: a Response to Tom TIllemans’ (with Jay Garfield and Yasuo Deguchi), Philosophy East & West, 63 (2013), pp. 462-35.
  220. ‘Zen and the Art of Harley Riding’, pp. 2-12 of B. E. Rollin, C. M. Gray, K. Mommer, and C. Pineo (eds.), Harley Davidson and Philosophy (Popular Culture and Philosophy, Vol. 18), Open Court, 2006.
  221. ‘The Prime Minister’ (‘When Tony Abbot met Socrates’), The Conversation, Nov 27, 2013,
  222. ‘Logic and Buddhist Metaphysics’, Oxford VSI Blog,
  223. ‘Indefinite Extensibility – Dialetheic Style’, Studia Logica 101 (2013), pp. 1263-1275.
  224. ‘Foreword’, Kereknyomok 2013/7, p. 6.
  225. ‘Entravista – Graham Priest’, Polemos 2 (2013), 167-194.
  226. ‘Logical Pluralism: Another Application of Chunk and Permeate’, Erkenntnis 29 (2014), 331-8.
  227. ‘Plurivalent Logic’, Australasian Journal of Logic 11 (2014); article 1.
  228. ‘Philosophy and its History’, Oxford University Press VSI Blog,
  229. ‘Lost Platonic Dialogue Found’, pp. 105-23 of Four Lives: a Celebration of Raymond Smullyan, ed. J. Rosenhouse, Dover Publications, 2014.
  230. ‘Beyond True and False’, Aeon, 5 May 2014,
  231. ‘Chunk and Permeate III: the Dirac Delta Function’ (with R. Benham and C. Mortensen), Synthese 191 (2014), pp. 3057-62.
  232. ‘Contradictory Concepts’, ch. 10 of Logic, Reasoning and Rationality, eds. E. Weber, D. Wouters, and J. Meheus, Springer, 2014.
  233. ‘Contradictory Concepts’ (short version), ch. 1 of Contradictions: Logic, History, and Actuality, ed. E. Ficara, De Gruyter, 2012.
  234. ‘Speaking of the Ineffable…’, ch. 7 of Nothingness in Asian Philosophy, eds. J. Lee and D. Berger, Routledge, 2014.
  235. ‘Buddhism, Logic, and All That’, Scientia Salon, September 8, 2014,
  236. ‘The Martial Arts and Buddhist Philosophy’, ch. 11 of Philosophy and the Martial Arts: Engagement, ed. G. Priest and D. Young, Routledge, 2014.
  237. ‘Revising Logic’, ch. 12 of P. Rush (ed.), The Metaphysics of Logic, Cambridge: Cambridge University Press, 2014.
  238. ‘Much Ado about Nothing’, Australasian Journal of Logic 11 (2014), Article 4,
  239. Sein Language’, Monist 97 (2014), 430-42.
  240. ‘External Curries’ (with Heinrich Wansing), Journal of Philosophical Logic, 44  (2015), pp.453-471.
  241. ‘Introduction’ (to a special issue of the AJP on David Lewis) (with Frank Jackson), Australasian Journal of Philosophy 82 (2004), 1-2.
  242. ‘Introduction: Contemporary Australian Research in Logic’, (with Chris Mortensen), Logique et Analyse, 137-8 (1992), 3-4.
  243. ‘Three Heresies in Logic and Metaphysics’, Polish Journal of Philosophy 7 (2013), 9-20.
  244. `Replies’, Polish Journal of Philosophy 7 (2013), 93-108.
  245. ‘Chunk and Permeate II’ (with Bryson Brown), European Journal for the Philosophy of Science 5 (2015) 297-31,.
  246. ‘Fusion and Confusion’, Topoi 34 (2015), 55–61.
  247.  ‘In the Same Way that This is: a Reply to Dotson’, Comparative Philosophy 3 (2012), 3-9.
  248. Introduction to Japanese translation of Towards Non-Being. (Tokyo: Keiso Shobo, 2011).
  249. ‘The Net of Indra’, pp. 113-127 of K. Tanaka, et al, The Moon Points Back, Oxford University Press, 2015.
  250. ‘Philosophie Sans Frontières’, OUP Blog,, May 23, 2015.
  251. ‘Introduction’ (with K. Tanaka et al), pp. xi-xvi of The Moon Points Back, Oxford University Press, 2015, eds. K. Tanaka, Y. Deguchi, J. Garfield, and G. Priest.
  252. ‘Kripke Thought Paradoxes and the 5th Antinomy’ ch. 24 of T. Achourioti, H. Galinon, J. Fernandez, and K. Fujimoto (eds.), Unifying the Philosophy of Truth, Springer, 2015.
  253. ‘Is the Ternary R Depraved?’, ch. 4 of C. Caret and O. Hjortland (eds.), Foundations of Logical Consequence, Oxford University Press, 2015.
  254. ‘Modal Meinongianism and Characterization. Reply to Kroon’, Grazer Philosophische Studien 90 (2014), pp. 183-200.
  255. ‘Alethic Values’, Newsletter of the APA, Asian and Asian-American Philosophers and Philosophies, 14(2), (2015), pp. 2-4.
  256. ‘Nineteenth Century German Logic’, ch. 20 of M. Forster and K. Gjesdal (eds.), The Oxford Handbook of German Philosophy in the Nineteenth Century, Oxford University Press 2015.
  257. ‘What I’m Reading’, Meanjin 74 (2015),
  258. ‘Graham Priest on Philosophy and Buddhism’, Philosophy Bites,
  259. ‘The Answer to the Question of Being’, pp. 249-58 of J. Bell, A. Cutrofello, and P. Livingston (eds.), Beyond the Analytic-Continental Divide: Pluralist Philosophy in the Twenty-First Century, London: Routledge, 2015.
  260. ‘Introduction: Why ask About Madhyamaka and Ethics?’ (with Jay Garfield), pp. 1-6 of the Cowherds (eds.), Moonpaths: Ethics and Emptiness, Oxford University Press, 2015.
  261. ‘The Santideva Passage: Bodhicaryvatara VIII 90-103’ (with Stephen Jenkins and Jay Garfield), pp. 55-76 of the Cowherds (eds.), Moonpaths: Ethics and Emptiness, Oxford University Press, 2015.
  262. ‘Compassion and the Net of Indra’, pp. 221-39 of the Cowherds (eds.), Moonpaths: Ethics and Emptiness, Oxford University Press, 2015.
  263. ‘Paradoxical Truth’, pp. 166-71 of The Stone Reader: Modern Philosophy in 133 Arguments, ed. P. Catapano and S. Critchley, Liveright Publishing Co, 2016.
  264. ‘Torn by Reason: Lukasiewicz on the Principle of Non-Contradiction’, ch. 18 of S. Costreie (ed.), Early Analytic Philosophy: Some New Perspectives on the Tradition, Springer, 2016.
  265. ‘None of the Above: The Catuskoti in Indian Buddhist Logic’, ch. 24 of J.-Y. Beziau, M. Chakraborty, and S. Dutta (eds.), New Directions in Paraconsistent Logic, Springer, 2015.
  266. ‘Tolerating Gluts’ (with Z. Weber, D. Ripley, D. Hyde, and M. Colyvan), Mind 123 (2014), pp.  813-28.
  267. ‘Comment on Restall’, Thought 5 (2016), p. 125.
  268. ‘Is Moonshadows Lunacy? The Cowherds Respond’, (as one of the Cowherds) Philosophy East and West 66 (2016), pp. 617-21.
  269. ‘Reflections Zen and the Art of Motorcycle Maintenance‘, International Journal for Motorcycle Studies, 10 (2014),
  270.  ‘Logical Disputes and the a Priori’, Principios: Rivista de Filosofia 23 (2016), pp. 29-57.
  271. ‘A Dictionary of Logic’ (with Thomas Ferguson), Oxford University Press,
  272. ‘The Enduring Evolution of Logic’, with Thomas Ferguson, OUP Blog, July 2016,
  273. ‘Old Wine in (Slightly Leaky) New Bottles: Some Comments on Beall’, Australasian Journal of Logic 13(5), Article 1,
  274. ‘Thinking the Impossible’, Philosophical Studies, 173 (2016), pp. 2649–266.
  275. ‘It is and it Isn’t’ (with Damon Young), Aeon (2016),
  276. ‘The Strange Case of the Missing Object’, OUP Blog, September 2016,
  277.  ‘Foreword: Edward Conze and the Law of Non-Contradiction’, pp. vii-x of E. Conze, The Principle of Contradiction: On the Theory of Dialectical Materialism (tr. Holger Heine), Lanham, MD: Lexington Books, 2016.
  278. ‘Answers to Five Questions’, pp. 153-160 of T. Adajian and T. Lupher (eds.), Philosophy of Logic: Five Questions, Automatic Press, 2016.
  279. ‘Logical Disputes and the a Priori’, Logique et Analyse 236 (2016), pp. 347-66.
  280. ‘Nasz Świat Nie Jest Najlepszym z Możliwych’ (‘Our World is not the Best Possible’), Filosofuj 2016 #6 (12), pp. 26-27.
  281. ‘Where Laws Conflict: an Application of Chunk and Permeate’, ch. 8 of H. P. Glenn and L. D. Smith (eds.), Law and the New Logics, Cambridge University Press, 2017.
  282. ‘Stop Making Sense’, Philosophical Topics 43 (2015), pp. 285-99. [Note that this appeared in 2017, notwithstanding the journal date.]
  283. ‘Three Questions to Graham Priest’, Paraconsistent Logic Newsletter, Spring 2017,
  284. ‘What If: the Exploration of an Idea’, Australasian Journal of Logic 14(1), Article 1,
  285. ‘Speaking of the Ineffable, East and West’, European Journal of Analytic Philosophy 11 (2015), pp. 6-21. [Note: despite the date of the volume, this issue actually appeared in 2017.]
  286.  ‘What is it like to be a philosopher? Interview with Graham Priest’,
  287. ‘Thinking the Impossible’, Argumenta, 2, (2017), pp. 181-194.
  288. ‘A Note on the Axioms of Countability’, IfCoLog Journal of Logics and their Applications 4 (2017), pp, 1351-6.
  289.  ‘Contradiction and the Instant of Change Revisited’, Vivarium 55 (2017), pp. 217-
  290. ‘Eubulides and his Paradoxes’, Oxford University Blog,
  291. ‘Précis of One’, International Journal of Philosophical Studies 25 (2017), pp. 532-5.
  292. ‘Entangled Gluons: Replies to Casati, Han, Kim, and Yagisawa’, International Journal of Philosophical Studies 25 (2017), pp. 560-8.
  293.  ‘Metaphysical Grounding, East and West’ (with Ricki Bliss), pp. 63-85 of S. Emmanuel (ed.), Buddhist Philosophy: a Comparative Approach, Wiley Blackwell, 2018.
  294. ‘What is the Specificity of Classical Mathematics?’, Thought 6 (2017), pp. 115-21.
  295. ‘Things are Not What they Seem’, pp. 225-236 of M. Silva (ed.), How Colours Matter to Philosophy, Springer, 2017.
  296. 296. ‘Plurivant Logics’, pp. 169-79 of V. Markin and D. Zaitsev (eds.), The Logical Legacy of Nokolai Vasiliev and Modern Logic, Springer 2017.
  297.  ‘Interview with Graham Priest’, Figure/Ground, January 1, 2018,
  298. ‘Buddhist Ethics: a Perspective’, ch. 5 of J. H. Davis (ed.), A Mirror is for Reflection: Understanding Buddhist Ethics, New York: Oxford University Press, 2017.
  299. Preface (pp. 13-18) of The Vindication of Nothingness, by Marco Simionato, Editiones Scholasticae (Taylor and Francis), 2017.
  300.  ‘Inside Aussersein’ (with Filippo Casati), The IfCoLog Journal of Logics and their Applications 4 (2017), pp. 3583-96.
  301. ‘Contradiction and the Instant of Change Revisited’, pp 217-226 of F. Goubier and M. Roques (eds.), The Instant of Change in Medieval Philosophy and Beyond, Brill, 2018. [A reprint of the 2017 Vivarium article.)
  302. ‘The Geography of Fundamentality’ (with R. Bliss), Ch. 0 of R. Bliss and G. Priest (eds.), Reality and its Structure: Essays in Fundamentality, Oxford University Press, 2018.
  303. ‘Buddhist Dependence’, Ch. 6 of R. Bliss and G. Priest (eds.), Reality and its Structure: Essays in Fundamentality, Oxford University Press, 2018.
  304.  ‘Introduction: Approaching Sylvan and this Collection of Essays’ (with Filippo Casati and Chris Mortensen), Australasian Journal of Logic 15(2), 2018, Article 1.
  305. ‘Some New Thoughts on Conditionals’, Topoi 27 (2018), pp. 369-77.
  306. ‘Heidegger and Dōgen on the Ineffable’ (with Filippo Casati), ch. 14 of R. H. Scott ad G. S. Moss (eds.), The Significance of Indeterminacy, Routledge, 2019. (Despite the date, this appeared in 2018.)
  307. ‘Wittgensteins Bemarkungen zu Goedel’s Theorem’, pp. 143-69 of J. Bromand (ed.), Wittgenstein und die Philosophie der Mathematik, Mentis. (A translation of 122.)
  308.  ‘Paradoxical Propositions’, Philosophical Issues 28 (2018), pp. 300-307.
  309.  ‘Marxism and Buddhism: Not such Strange Bedfellows’,  Journal of the American Philosophical Association, 4 (2018), pp. 2-13.
  310.  ‘Characterisation, Existence and Necessity’,  pp. 250-269 of G. Oppy (ed), Ontological Arguments, Cambridge University Press, 2018.
  311. Farsi translation of  ‘The Prime Minister’  (221 above), Logos (An Iranian Quarterly Journal of Philosophy) 1 (2018), pp. 16-26.
  312.  ‘Williamson on Counterpossibles’ (with Franz Berto, Rohan French, and Dave Ripley), Journal of Philosophical Logic 47 (2018), pp. 693-713.
  313. ‘Berry’s Paradox… Again’, Australasian Journal of Logic 16 (2019), pp. 41-48.
  314. ‘Kant’s Excessive Tenderness for Things in the World, and Hegel’s Dialetheiesm’, ch. 2 of S. Lapointe (ed.), Logic from Kant to Russell: Laying the Foundations for Analytic Philosophy, Routledge, 2019.
  315.  ‘The Net of Indra’, pp. 655-68 of S. C. Lee and C. H. Yang (eds.), Confucianism and Contemporary Cultures, Research Center for Confucian Studies, National Central University, Taiwan, 2019.
  316. ‘Nasil Bir Dünyada Yaşiyoruz’ (‘What Kind of World we are Living in?’),  Sabah Ülkesi 59 (Nisan, 2019), pp. 102-60.
  317. ‘Goedel’s Theorem and Paraconsistency’, in E. Almeida, A. Costa-Leite, and R. Freire (eds.), Lógica no Avião (2019),
  318. ‘On Ivanhoe on Oneness’, Philosophy and Phenomenological Research 99 (2019), 495-500.
  319. ‘Waismann on Fiction and its Objects’, ch. 14 of D. Makovec and S. Shapiro (eds.), Friedrich Weismann: the Open Texture of Philosophy, Palgrave Macmillam, 2019.
  320. ‘Fictional Objects Fictional Subjects’, ch. 7 of D. Rudrum, R. Askin, and F. Beckman (eds.) New Directions in Philosophy and Literature, Edinburgh University Press, 2019.
  321. ‘Introduction: Some Personal Reflections’, pp. xiii-xvii of D. Hyde (ed.), Noneist Explorations 1 (The Sylvan Jungle, Vol. 2), Springer, 2019.
  322. ‘Logical Theory-Choice: the Case of Vacuous Counterfactuals’, Australasian Journal of Logic 16:7 (2019), Article #5,
  323.  ‘Objects that are not Objects’, pp. 217-29 of M. Szatkowski (ed.), Quo Vadis Metaphysics? Essays in Honor of Peter van Inwagen, De Gruyter (2019).
  324. ‘From the Foundations of Mathematics to Mathematical Pluralism’, pp. 363-380 of S. Centrone, D. Kant, and D. Sarikaya (eds.), Reflections on the Foundations of Mathematics: Univalent Foundations, Set Theory and General Thoughts, Springer (2019).
  325.  ‘Metaphysics and Logic: an Observation in Metametaphysics’, Giornale di Metaphysica 1 (2019), pp. 68-77.
  326.  ‘Natural Deduction for Systems in the FDE Family’, pp. 279-92 of H. Omori and H. Wansing (eds.), New Essays on Belnap-Dunn Logic, Springer, 2019.
  327. ‘Some Comments and Replies’, pp. 575-675 of C. Baskent and T. Ferguson (eds.), Graham Priest on Dialetheism and Paraconsistency (Outstanding Contributions to Logic Series), Springer 2019.
  328.  ‘Crossing Boundaries’, pp. 677-90 of C. Baskent and T. Ferguson (eds.), Graham Priest on Dialetheism and Paraconsistency (Outstanding Contributions to Logic Series), Springer 2019.
  329. ‘It Was So Revolting I Couldn’t Take My Eyes Off It’, pp. 47-56 of A. Rieger and G. Young (eds.), Dialetheism and its Applications, Springer, 2019.
  330. ‘Dialetheism and the Sorites Paradox’, ch. 7 of S. Oms and E. Zardini (eds.), The Sorites Paradox, Cambridge University Press, 2019.
  331. ‘The Recent History of Logic: a Perspective’, Felsefe Arkivi 51 (2019), pp. 335-8.
  332.  ‘Emanuele Severino and the Principle of Non-Contradiction’, Eternity and Contradiction: a Journal of Fundamental Ontology 2 (2020), pp. 42-66.
  333. ‘Modal Meinongianism and Object Theory’ (with Franz Berto, Filippo Casati, and Naoya Fujikawa), Australasian Journal of Logic 17(1), (2020), article 1,
  334. Interview, ‘Graham Priest. La Dialetheia o Teoria della Doppia Verità’, Rai Cultura (Nov. 2019),
  335. ‘Gibt es mehr als nur wahr oder falsch?’ (‘Is there more than just truth and falsity?’), Die Zeit, 10 June 2020, p. 49.
  336. ‘Gödel’s Theorem and Paraconsistency’, pp. 1-8 of E. Almeida, A. Costa-Leite and R. Freire (eds.), Seminário Lógica no Avião 2013-2018,
  337. ‘Don’t be So Fast with the Knife: A Reply to Kapsner’, Journal of Comparative Philosophy 11 (2020). pp. 174-9.
  338. ‘Imagination, Non-existence, Impossibility’, pp. 157-165 of S. N.  Mousavian and J.  Fink (eds.), The Internal Senses in the Aristotelian Tradition, Springer, 2020.


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 b) Monographs and Books

1. On Paraconsistency  (with R. Routley).  Research Report #l3, Research School of Social Sciences, Australian National University l983.  Reprinted as the introductory chapters  of Paraconsistent  Logic,  G. Priest,  R.  Routley and J.  Norman  (eds.),  Philosophia  Verlag, 1989.  Translated into Romanian as chapters in I. Lucica (ed.), Ex Falso Quodlibet: studii de logica paraconsistenta (in Romanian), Editura Technica, 2004.

2. In Contradiction: a study of the transconsistent, Martinus Nijhoff, 1987. Second edition Oxford University Press, 2006.

3. Beyond the Limits of Thought, Cambridge University Press, 1995.  Second edition, Oxford University Press, 2002.

4. Logic: a Very Short Introduction, Oxford University Press, 2000.  Translated into Portuguese as Lógica para Começar, Temas & Debates, 2002. Translated into Spanish as Una Brevísima Introducción a la Lógica, Oceano, 2006. Translated into Czech, as Logica, Dokorán, 2007. Translated into Japanese, Iwanami Shoten, 2008. Translated into Chinese by Yilan Press, 2011. Translated in Farsi, Press?, 2007.  Translated into Italian, Condice Edizioni, 2012. Translated into Italian, Condice Edizioni, 2012. Translated into Turkish as Mantik, Dost Kitabevi, 2017.  Second edition, 2017. Translated into Finnish, as Logiikka,  Niin & Näin, 2017. Translated into Georgian, Salakauri Publishing, 2019.

5. Introduction to Non-Classical Logic, Cambridge University, 2001.

 6. Towards Non-Being: the Semantics and Metaphysics of Intentionality, Oxford University Press, 2005.

7. Doubt Truth to be a Liar, Oxford University Press, 2006.

8. Dincolo de limitele gândirri, (trs. Dimitru Gheorghiu), Paralela 45, 2007. (Romanian translation of the second edition of 3.)

9. Introduction to Non-Classical Logic: from If to Is, Cambridge University Press, 2008.

10. German translation of Part 1 of Introduction to Non-Classical Logic: From If to Is: Einführung in die nicht-klassische logic, Mentis 2008.

11. Logic: A Brief Insight, Sterling 2010.

12. Japanese translation of Towards Non-Being (Tokyo: Keiso Shobo, 2011). (Translators Naoya Fuikawa and Manao Kukita.)

13. One: Being an Investigation of the Unity of reality and of it Parts, including the Singular Object which is Nothingness, Oxford University Press, 2014.

14.  Uno (Spanish Translation of 13), Alpha Decay, 2016.

15. Towards Non-Being, 2nd (extended) edition, Oxford University Press, 2016.

16. The Fifth Corner of Four: and Essay in Buddhist Metaphysics and the Catuṣkoṭi, Oxford University Press, 2018.


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c) Works Edited

  1. Proc. Bertrand Russell Memorial Logic Conference, eds. J. Bell et al, Leeds l973.
  2. Studia Logica  l983, 43.  [A double issue on paraconsistent logic,  guest-edited  by  myself and R. Routley.]
  3. Paraconsistent Logic: essays on the inconsistent, eds. G. Priest and R. Routley, J. Norman, Philosophia Verlag, 1989.
  4. Logique et Analyse 1992,  137-8  and  139-40.   [Two   issues   entitled   ‘Contemporary Australian Research in Logic’, guest-edited by myself and C.Mortensen.]
  5. Notre Dame Journal of Formal Logic, 1997, #4.  [An issue on  impossible  worlds,  guest edited.]
  6. Frontiers of Paraconsistency,  (with Diderik Batens, Chris Mortensen and Jean-Paul van Bendegem), Research Studies Press, 2000.
  7. Sociative Logics and their Applications: essays by the late Richard Sylvan’ (with Dominic Hyde), Ashgate Publishing Co., 2000.
  8. The Monist 86(1), (2003). (with Roger Lamb). [An issue on the topic of perversion.]
  9. New Essays on the Law of Non-Contradiction, eds. G. Priest, J. C. Beall and B. Armour-Garb, Oxford University Press, 2004.
  10. Australasian Journal of Philosophy 82(1), (2004), (with Frank Jackson). [A special issue on David Lewis and his philosophy.]
  11. Lewisian Themes: the Philosophy of David K Lewis, with Frank Jackson, Oxford University Press, 2004.
  12. Moonshadows: Conventional Truth in Buddhist Philosophy, as one of The Cowherds (eds.), Oxford University Press, 2010.
  13. Beating and Nothingness: Philosophy and the Martial Arts (with Damon Young), Open Court, 2010.
  14. Philosophy and the Martial Arts: Engagement (with Damon Young), Routledge, 2014.
  15. The Moon Points Back (with K. Tanaka, Y. Deguchi, and J. Garfield), Oxford University  Press, 2015.
  16. Reality and its Structure: Essays in Fundamentality (with R. Bliss), Oxford University Press, 2018.
  17. The Australasian Journal of Logic, Special Issue on Richard Sylvan, 15(2), 2018 (with Filippo Casati and Chris Mortensen).
  18. Exploring Meinong’s Jungle and Beyond: The Sylvan Jungle, Vol. 1 (with Maureen Eckert et al), Springer 2018.

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d) Reviews, Critical Notices, etc.


  1. Logic: depth grammar of rationality, P.K. Bastable, Times Higher Educational Supplement 210, 3l October l975, p.20.
  2. Deviant Logic, S. Haack, Philosophical Quarterly l975, 25, 371-3.
  3. Mathematical Knowledge, M. Steiner, Philosophical Quarterly l976, 26, 281-2.
  4. Can Theories be Refuted? ed. S. Harding, Philosophical Quarterly l977, 27, 73-4.
  5. From Belief to Understanding, R. Campbell, Philosophical Quarterly 1978, 28, 92-4.
  6. Willard Van Orman Quine, A. Orenstein, Philosophical Quarterly l979, 29, l73-5.
  7. Knowledge and Science, H. Kannegeiser, Philosophical Quarterly 1979, 29, 366-7.
  8. Ways of Meaning, M. Platts, Australasian Journal of Philosophy l980, 58,74-6.
  9. Theory and Meaning, D. Papineau, Philosophical Quarterly l98l, 3l, 77-79.
  10. Russell, R.M. Sainsbury, Australasian Journal of Philosophy l98l, 59, 346-7.
  11. Cognitive Systematization, N. Rescher, Australasian Journal of Philosophy l982, 60, l85-6.
  12. On Philosophical Method, H.N. Castañeda, Australasian Journal of Philosophy l982,  60, 296-8.
  13. A Companion to Modal Logic, G. Hughes and M.J. Cresswell, Australasian Journal  of Philosophy 1986, 64, 220-1.
  14. Truthlikeness, I. Niiniluoto, Metascience 5, 1988, 39-40.
  15. Conditionals, F. Jackson, Australasian Journal of Philosophy, 1989, 67, 236-9.
  16. Paradoxes, R. M. Sainsbury, History and Philosophy of Logic 1990, 11, 245-7.
  17. Computers, Brains and Minds: Essays in Cognitive Science, eds. P. Slezak and  W. Albury, Metascience 1990, 8, 137-8.
  18. Truth, Vagueness and Paradox, V. McGee, Mind, 103 (1994), 387-91.
  19. Entities and Indices, M. J. Cresswell, Australasian Journal of Philosophy, 71 (1993), 336-7.
  20. Entailment, Vol. II, A. Anderson, N. Belnap & J. M. Dunn, Australasian Journal of Philosophy 72 (1994), 112-4.
  21. Dialectical Investigations, B. Ollman, Science and Society, 58 (1994-5), 496-8.
  22. From Dedekind to Goedel, J. Hintikka (ed.), Studia Logica 60 (1998), 333-6.
  23. Mathematical Objects and Mathematical Knowledge, M. Resnik (ed.). Studia Logica 61 (1998), 293-6.
  24. George Boole: Selected Manuscripts on Logic and  Philosophy,  I. Grattan-Guinness  and G. Bornet (eds.), Studia Logica 63 (1999), 143-146.
  25. Logic with Trees, C.Howson, Studia Logica 63 (1999), 140-143.
  26. Logiques Classiques et Non-Classique, Newton da Costa, Studia Logica 64 (2000), 435-43.
  27. Understanding Truth, Scott Soames, British Journal for the Philosophy of Science 52 (2001), 211-5.
  28. Questions of Time and Tense, R. Le Poidevin, Mind 110 (2001), 218-22.
  29. Papers in Philosophical Logic, Papers in Metaphysics and Epistemology, Papers in Ethics and Social Theory, David Lewis, Nous 36 (2002), 351-58.
  30. The Later Heidegger, George Pattison, Philosophical Quarterly 52 (2002), 401-3.
  31. Hegel’s Dialectical Logic, E. Bencivenga, Mind 111 (2002), 643-46.
  32. Knowledge and its Limits, T. Williamson, Journal of Philosophy 100 (2003), 268-71.
  33. Possibilities and Paradox, J. C. Beall and B. van Fraassen, Studia Logica 79 (2005), 310-313.
  34.  Relevant Logic, Ed Mares, Australasian Journal of Philosophy 83 (2005), 431-3.
  35.  Free Logic, Karel Lambert, Philosophia Mathematica  13 (2005) 326-328.
  36. Truth and Paradox, Tim Maudlin, Journal of Philosophy, 102 (2005), 483-6.
  37.  Fear of Knowledge: against Relativism and Constructivism, Paul Boghossian, Review of Metaphysics 61 (2007), 120-2.
  38. Mainstream and Formal Epistemology, Vincent F. Hendricks, British Journal for the Philosophy of Science, 60 (2009) 433-437.
  39. Absolute Generality, Agustín Rayo and Gabriel Uzquiano (eds.), Notre Dame Philosophical Reviews, 2007.09.17,
  40. Vagueness, Logic and Ontology, Dominic Hyde, and Vagueness and Degrees of Truth, Nicholas, J. J. Smith, History and Philosophy of Logic 31 (2010), 177-84.
  41. Talking about Nothing, Jody Azzouni, Philosophia Mathamatica 19 (2011), 359-63.
  42. The Bodhisattva’s Brain: Buddhism Naturalised, Owen Flannagan, Philosophical Quarterly 62 (2012), 862-4.
  43. Indian Buddhist Philosophy, by A. Carpenter, Philosophical Quarterly 65 (2015), 585-7.
  44. The Boundary Stones of Thought: an Essay in the Philosophy of Logic, Ian Rumfitt, Journal of Philosophy 112 (2016), 570-6.
  45. Replacing Truth, Kevin Scharp, Mind 125 (2016), 553-8.
  46.  Logical Studies of Paraconsistent Reasoning in Science and Mathematics, eds. H. Andreas and  P. Verdée,  Studia Logica 106 (2018), 1213-18.
  47. Doing Philosophy: From Common Curiosity to Logical Reasoning, Timothy Williamson, Notre Dame Philosophical Reviews, 2019.04.01,


e) Papers Given at Conferences and Learned Societies. (* Denotes an Invited Address):


  • *l976 British Society   for   the   Philosophy   of   Science,   Warwick   University.     ‘Principia Mathematica and the Vicious Circle Principle’.
  • l976 Australasian Association of Logic, Australian National University.’Logic of Paradox’.
  • l977 AustralasianAssociation  of  Logic,  Melbourne University.   ‘The Logical  Paradoxes:   a unified account’.
  • l978 AustralasianAssociation   of   Logic,   University   of   Queensland.    ‘Two   Dogmas   of Quineanism’.
  • l979 AustralasianAssociation  of  Philosophy, University of  Melbourne.   ‘Classical Logic:   a degenerating research program in crisis’.
  • 1979 First Australian Conference on Relevant and ParaconsistentLogics,  Australian  National University.  ‘Reductio ad Absurdum et Modus Tollendo Ponens’.
  • l980 AustralasianAssociation  of Philosophy, University of Sydney.  ‘A Dialectical  Model  of the Growth of Science’.
  • l98l Australasian Association of Logic, Victoria University,Wellington.  ‘To be and not to be:  dialectical tense logic’.
  • l983 AustralasianAssociation  of  Logic,  University  of  Western Australia.   ‘A   Survey   of Paraconsistency’.
  • l983 AustralasianAssociation  of  Philosophy,  University  of  Adelaide.    ‘Inconsistencies   in Motion’.
  • 1985 Australasian Association of Philosophy, University of New South Wales.’On Time’.
  • *1986 Aristotelian Society (January Meeting). ‘Contradiction, Belief and Rationality’.
  • 1986 Australasian Association of Logic, University of Auckland.’Distinctly Vague’.
  • 1986 Conference on Contradictions, Newcastle University. ‘Continuity and Contradiction’.
  • 1986 Second Hegel Conference, Newcastle University. ‘Dialectic and Dialetheic’.
  • *1987 Interlogicon Conference, University of Natal, ‘When Inconsistency is Inescapable’.
  • 1988 Third AustralianConference  on  Paraconsistent  Logic,  Australian  National  University, ‘Boolean Negation and All That’.
  • *1988 Australasian Association   for   Logic, University of Western Australia,   ‘Intensional Paradoxes’ (Presidential Address).
  • *1989 American Philosophy Association (West Coast Division), UC (Berkeley), ‘Symposium on In Contradiction: Reply to Parsons and McGee’.
  • *1989 Australasian Association of Philosophy, Australian National University,  ‘The  Limits  of Thought – and Beyond’ (Presidential Address).
  • 1989 Joint meetingof the Australasian Association for Logic and  Australasian  Association  of Philosophy   (New   Zealand   Division),   Canterbury  University,   Christchurch,    ‘Some Priorities of Berkeley’.
  • *1990 Moral Sciences Club, University of Cambridge, ‘Some Priorities of Berkeley’.
  • 1991 Australasian Associationof  Philosophy,  University  of  Melbourne,  ‘Derrida  and   Self-Reference’.
  • 1991 Australasian Association for Logic,Sydney University of Technology, ‘The  Structure  of Paradox’.
  • *1991 Lamington International Conference on Creativity, ‘Creativity and Goedel’s Theorem’.
  • 1992 Australasian Association of Philosophy,University  of  Queensland,  ‘The  Structure   of Thought’.
  • 1992 Australasian Association for Logic,Australian National  University,  ‘Russell’s  Scheme and some Inconsistent Models of Arithmetic’.
  • *1992 Conference on Philosophy in Mind,  University of  New  South  Wales,  ‘Creativity  and Goedel’s Theorem’
  • *1993 Joint Session of Mind Society and the Aristotelian Association, University of Birmingham, ‘Can Contradictions be True?, II’.
  • 1994 Australasian Associationfor  Logic,  Otago University,  ‘On  a  Paradox  of  Hilbert  and Bernays’.
  • *1994 Conference on Paraconsistent Logics, University of Gent, ‘Finite Models of Arithmetic’.
  • *1994 Meeting of the  Belgian  Society for the Logic and the  Philosophy  of  Science,  Brussels, ‘Goedel’s Theorem and the Mind’.
  • 1995 Joint meeting of the Australasian History of Philosophy Association and theAustralasian Classical Philosophy Association, Australian National University, ‘Aristotle on the Law  of Non-Contradiction’.
  • 1995 Australasian Association for Logic, University of New England,’Finite   Models   of Arithmetic’.
  • 1995 Australasian Association of Philosophy, University of New England, ‘Could Everything be True?’
  • 1996 FourthSymbolic   Reasoning   Systems   Workshop, Australian National University, ‘Relational Semantics, Ambiguity and the Strange Case of the Missing Amoeba’.
  • *1996 European ASL Meeting, Donostia, ‘Inconsistent Arithmetics and Non-Euclidean Geometries’.
  • *1996 Łukasiewicz in   Dublin,  University   College   Dublin,   ‘On   Alternative    Geometries, Arithmetics and Logics, a Tribute to Łukasiewicz’.
  • 1997 ASL Meeting, MIT, Boston, ‘Inconsistent Models of Arithmetic II: the General Case’.
  • 1997 Society for Exact Philosophy, Montreal, ‘Sylvan’s Box: a Short Story and 10 Morals’.
  • *1997 Logica ’97, Czech Academy of Sciences, Prague, ‘What is Logic?’.
  • *1997 First World   Congress   on   Paraconsistency, University   of   Gent,   ‘Motivations    for Paraconsistency: the Slippery Slope from Classical Logic to Dialetheism’.
  • 1997 20thInternational   Wittgenstein Symposium,  Kirchberg am Wechsel,   ‘Language,   its Possibility, and Ineffability’.
  • *1997 Conference on Methods, New School, NYC, ‘Truth and Vagueness’.
  • *1997 American Philosophical Association (Eastern Division), Philadelphia, ‘What’s in a Game? Commentary on Thalos’.
  • 1998 Australasian Association of Logic, Macquarie University, Sydney, ‘Paraconsistent Set Theory and Metatheory’.
  • 1998 Australasian Association of Philosophy, Macquarie University, Sydney, ‘Truth and Contradiction’.
  • * 1999 Second Smirnov Readings, Russian Academy of Science, Moscow, ‘Vasil’ev and Imaginary Logic’.
  • *1999 Society for Exact Philosophy, Lethbridge University, Canada, ‘Logic: One or Many?’
  • 1999 Australasian Association of Logic, Melbourne University, ‘Objects of Thought’.
  • 1999 Australian Association of Philosophy, Melbourne University, ‘Heidegger and the Limits of Thought’
  • *1999 Australasian Association of Philosophy (NZ Division), Dunedin, ‘Where is Philosophy at the End of the 20th Century?’.
  • *2000 Second World Congress on Paraconsistency, Sao Paulo, Brasil, `Fuzzy Relevant Logic’
  • *2000 Arché Metaphysics Conference, St. Andrews, Scotland, ‘Objects of Thought’.
  • 2000 Australasian Association for Logic, Noosa, Queensland, ‘Fuzzy Relevant Logic’.
  • 2000 Australasian Association of Philosophy, University of Queensland, ‘Nagarjuna and the Limits of Thought’.
  • *2000 23rd International Wittgenstein  Symposium,  Kirchberg  am  Wechsel,   ‘Why it’s Irrational to Believe in Consistency’.
  • *2000 Augustus De Morgan Logic Conference, King’s London, ‘Paraconsistency and Dialetheism: a Prehistory’.
  • *2001 7th Australian Postgraduate Students Association Meeting, Melbourne University, ‘The Linguistic Construction of Reality’.
  • *2001 One Hundred Years of Russell’s Paradox, Munich, ‘Paraconsistent Set Theory and Metatheory’.
  • 2001 Australasian Society for the History, Philosophy and Social Studies of Science, University of Melbourne, ‘Inconsistency and the Empirical Sciences’.
  • 2001 Australasian Association of Philosophy, Hobart, ‘Emptiness’.
  • 2001 Australasian Association of Philosophy, Hobart, ‘The Fine Tuning Argument’ (with Mark Colyvan and Jay Garfield).
  • *2001 Aporia: and Transformations of a Philosophical Concept, The Norwegian Institute at Athens, Greece, ‘Unity’.
  • *2001 The Lazerowitz-Tymoczko Logic Lecture, Smith College, Massachusetts, ‘The Hooded Man’.
  • *2002 Australasian Associaition for the History Philosophy and Sociology of Science, University of Sydney, ‘Comments of Colyvan’.
  • 2002 Australasian Association of Philosophy, Canterbury University, Christchurch, NZ, ‘Towards a Solution to the Sorites Paradox’.
  • *2002Grenzen und Grenzüberschreitungen, XIX Deutscher Kongress für Philosophie, Allgemeine Gesellschaft für Philosophie in Deutschland, University of Bonn, ‘Consistency, Paraconsistency and the Logical Limitative Theorems’.
  • 2002 Philosophical Insights into Logic and Mathematics: The History and Outcome of Alternative Semantics and Syntax, University of Nancy, France, ‘Chunk and Permeate, a Paraconsistent reasoning Strategy, I: The Infinitesimal calculus’.
  • *2002 Vagueness and Self-Reference, University of Connecticut, ‘Towards a Solution to the Sorites Paradox’.
  • *2002 Self-Reference, University of Copenhagen, Denmark, ‘Paradoxes of Denotation’.
  • *2002 Aristotelian Society (December meeting), ‘Where is Philosophy at the Start of the 20th century?’
  • *2003 ‘The Nature of Philosophy’, Philosophical Society of South Africa, University of Rhodes.
  • *2003 ‘Inconsistent Models of Arithmetic’, Naturalism and the Philosophy of Mathematics, University of Queensland.
  • 2003 ‘Inconsistent Models of Arithmetic’ Australasian Association for Logic, University of Adelaide.
  • 2003 ‘Intentionality: Meinong and the Medievals, Australasian Association of Philosophy, University of Adelaide.
  • 2003 ‘Non-Transitive Identity’, Third World Congress on Paraconsistency, Toulouse.
  • 2003 ‘Envelopes and Indifference’ (with Greg Restall), International Union for the History and Philosophy of Science,Division for Logic  and Methodology, Oviedo, Spain.
  • *2003’Inconsistent Models of Arithmetic’, Logic Colloquium 2003 (Annual ASL European Meeting).
  • *2004 ‘Logic: Rivalry and Revision’, a Conference on the Foundations of Logic, University of North Carolina at Chapel Hill.
  • *2004 ‘Rationality, Inconsistency and Belief-Revision’, at a workshop of the same name, University of Kyoto.
  • 2004 ‘Boolean Negation: that it is Meaningless’, meeting of the Australasian Association for Logic, South Molle Island, Queensland.
  • 2004 ‘The Structure of Emptiness’, annual meeting of the Australasian Association ofPhilosophy, South Molle Island, Queensland.
  • *2004 ‘Sexual Perversion’, Philosophy and its Applications, undergraduate conference, Columnes River College, Sacramento.
  • *2004 ‘The Limits of Knowledge’, presented at the conference entitled The Philosophy of Uncertainty: Epistemic Limits, Probability, and Decision, University of Tokyo.
  • * 2005‘Beyond the Limits of Knowledge’, Logica 2005, Hejnice, Czech Republic.
  • November 2005, BILAP, Cambridge University, ‘Mountains are Just Mountains’ (with Jay Garfield)
  • *2006 ‘Replies to Horgan and Parsons’, American Philosophical Association, Chicago.
  • * April 2006, ‘Lakatos, Proof, and Paraconsistency’ (with Neil Thomason), First online philosophy conference,
  • July 2006, ‘Dialetheism, Language and the World’, Australasian Association of Philosophy, Canberra.
  • October 2006, ‘Buddhism and the Martial Arts’, Conference on Philosophy and the Martial Arts, Melbourne University.
  • * November 2006, ‘The Logic of Relativism’, 3rd Arché Postgraduate Conference, University of St Andrews.
  • * January 2007, ‘Jaina Logic’, International Conference on Logic, Navya-Nyaya and Applications, Jadavpur University, Calcutta.
  • * January 2007, ‘Aristotle on Future Contingents: an Exercise in Many-Valued Modal Logic’, International Seminar on Necessity and Contingency: Some Indian and Western Views, Department of Philosophy, University of Calcutta.
  • * February 2007, ‘Many-Valued Modal Logic’, Mathematical Methods in Philosophy, Banff, Canada.
  • * April, 2007, ‘Replies to Field, Beall and Bueno’, author meets critics session, American Philosophical Association, San Francisco.
  • July 2007, ‘The Closing of the Mind: How the Particular Quantifier became Existentially Loaded behind our Backs’, Australasian Association of Philosophy, University of New England.
  • * August 2007, ‘Agency and Social Control – China and the West’, given at the conference ‘Thinking Ahead: Chinese Visions on a Planetary Scale’, Monash University.
  • * November 2007, ‘The Language of Dialetheism’, Logic and Reality, Universities of Namur and Louvain la Neuve.
  • * December 2007, ‘Contradiction in Identity’, Structure and Identity, University of Brussels.
  • * December 2007, ‘The Closing of the Mind’, Beth/Vienna Circle Lecture, 16th Amsterdam Colloquium.
  • *March 2008, ‘The Net of Indra’, Analytic Philosophy and Asian Thought, Kyoto University
  • *April 2008, New York University, New York Institute of Philosophy, ‘Dispute: Logic and the a Priori’.
  • *April 2008, American Philosophical Association, Chicago, ‘Reply to Badici’.
  • *June 2008, International Association for Buddhist Studies, Atlanta, ‘Two Truths, Two Models’.
  • July 2008, Australasian Association of Philosophy, Melbourne, ‘All is One’.
  • July 2008, Fourth World Congress on Paraconsistency, ‘Inclosure, Vagueness and Self-Reference’.
  • *July 2008, Logic, Being and Non-Being in History, University of Sydney, ‘Creating Non-Existents’.
  • *August 2008, Logical Pluralism, Tartu, Estonia: ‘Logical Pluralism: Another Application for Chunk and Permeate’.
  • *November 2008, Quine, 100 Year Conference, Bucharest, Romania: ‘Quine: Naturalism Unravelled’.
  • January 2009, Foundations of Logical Consequence, University of St Andrews, ‘Is the Ternary R Depraved?’
  • *April 2009, Chinese Society for Analytic Philosophy, Hangzhou, ‘Contradiction and Unity’.
  • June 2009, Logos, Barcelona Workshop 6: Reference and Non-Existence, Barcelona, ‘Creating Non-Existents’.
  • July 2009, Australasian Association of Philosophy, University of Melbourne, ;Contradiction and Unity’.
  • July 2009, Australasian Association for Logic, University of Melbourne, ‘Is the Ternary R Depraved?’
  • August 2009, Science, Truth and Consistency, University of Campinas, ‘Dualising Intuitionist Negation’.
  • December 2009, Conference on Eastern and Western Philosophical Themes, City University of New York, ‘All is One’.
  • December 2009, Conference in Honour of Raymond Smullyan, City University of New York, ‘Mathematical Pluralism’.
  • February 15-17, 2010, Workshop on Non-Classical Logic, University of Kyoto.
  • [Cancelled because of flight disruptions] April, 2010, UNILOG 2010, Lisbon, ‘Mathematical Pluralism’ and *’The Catuskoti’.
  • *May, 2010, Dubrovnik, The Philosophy of Logic Consequence, ‘Logical Disputes and the a Priori’.
  • May, 2010, Paris, workshop on Existence with Friederike Moultmann.
  • May 2010, Paris, Semantics and Philosophy in Europe (SPE3), ‘Contradiction and the Structure of Unity’.
  • June 2010, Hamburg, Indian Logic and Epistemology, ‘The Catuskoti’.
  • June 2010, St Andrews, Foundations of Logical Consequence, ‘Comments on McGee’.
  • July 2010, University of New South Wales, Australasian Association of Logic, ‘The Catuskoti’.
  • July 2010, University of New South Wales, Australasian Association of Philosophy, ‘Buddhist Ethics: a Perspective’.
  • July, 2010, University of Melbourne, Philosophy and the Martial Arts, ‘Buddhism and the Martial Arts’.
  • *July, 2010, Canterbury University of Christchurch, Public Lecture, ‘What is the History of Philosophy?’
  • August 2010, University of Melbourne, Workshop on Paraconsistent Mathematics, ‘Paraconsistent Set Theory and Metatheory’.
  • August 2010, University of Sao Paulo, First International Conference on Metaphysical Logic, ‘Contradiction and Unity’, and ‘All is One’.
  • September 2010, Logic, Reasoning and Rationality, University of Gent, ‘Logical Disputes and the a Priori’.
  • *September 2010, Logic and Language, University of Aberdeen, ‘Against Against Non-Being’
  • September 2010, Logic or Logics?, University of St Andrews, ‘Revising Logic’ (two lectures).
  • * September/October 2010, The Principle of Non-Contradiction: History and Theory, University of Bologna, ‘Plato’s Parmenides’.
  • * January 2011, Indian Conference on Logic and its Applications, Delhi `Four Corners – East and West’. [Cancelled because of visa problems.]
  • *January 2011, The Fourth Cambridge Graduate Conference on Logic and the Philosophy of Mathematics, ‘Dialetheism, Concepts, and the World’.
  • *June 2011, Contradiction: Logic, History, Actuality, Technische Universitat, Berlin, ‘Contradictory Concepts’.
  • *June 2011, Paradoxes of Truth and Denotation, LOGOS Group, University of Barcelona, `Read on Bradwardine on the Liar’.
  • *June 2011, HiiL/NIAS Workshop onMulti-Valued Law and Multivalent Logic, Wassennar, `Where Laws Conflict: an Application of the Method of Chink and Permeate’.
  • *July 2011, Truth, Paradox, and Abstraction, University of Aberdeen, ‘Revising Logic’.
  • *July 2011, Beyond the Possible, Melbourne University, ‘Indefinite Extensibility – Dialetheic Style’.
  • August 2011, Objects and Properties, Melbourne University, ‘The Unity of the Proposition’.
  • * September 2011, Conference on Kripke’s Philosophical Troubles, CUNY, NY, ‘Comments on Kripke’s Thought Paradox’.
  • *October 2011, Royal Institute of Philosophy, London, ‘The Martial Arts and Buddhist Philosophy’.
  • *November 2011, Eliot Lecture, George Washington University, ‘Between the Horns ofRealism and Idealism’.
  • *November 2011, Contradictions in Buddhism, Kyoto University, ‘Replies to Critics’
  • *December 2011, Indefinite Extendability, University of St Andrews, ‘Indefinite Extendability – Dialetheic Style’
  • *April 2012, Studies on Indian and Islamic Logic, Istanbul University, ‘None of the Above: the Logic of the Catuskoti’.
  • *May 2012, Philosophy, Mathematics, Linguistics: Aspects of Interaction, Euler International Mathematical Institute, St Petersburg, ‘The Axiom of Countability’.
  • June 2012, Trends in Logic XI, Ruhr University of Bochum, ‘Indefinite Extensibility – Dialetheic Style’.
  • June 2012, Towards Graham Priest, University of Szczecin, ‘Some Heresies in Logic and Metaphysics’.
  • *July 2012, ‘Logical Paradoxes and Logical Revision’, Ludwig Maximillian University of Munich, ‘Revising Logic’.
  • *August 2012, Curry’s Paradox, University of Otago, ‘Fusion and Confusion’.
  • *September 2012, German Society for Analytic Philosophy, Konstanz, ‘Fusion and Confusion’.
  • *September 2102, Buddhist Ethics and Emptiness, Central Michigan University, ‘Compassion and the Net of Indra’
  • October 2012, Vasiliev Workshop, Moscow University, ‘Plurivalent Logics’. [Visit cancelled because of visa problems. Paper given my internet connection two weeks later.]
  • * December 2012, ‘Replies to Papers Given, 25 Years in Contradiction, University of Glasgow.
  • *February 2013, ‘Revising Logic’, Larwill Lecture, Kenyon, College (OH)
  • * March 2013,’Selling Sex’, Forum Lecture, University of Nevada at Las Vegas
  • * March 2013, ‘Revising Logic’, Undergraduate Philosophy Conference, Michigan State University
  • April 2013, ‘Why Study Logic?’, Unilog 2013, Rio de Janeiro.
  • April 2013, ‘Plurivalent Logic’, Unilog 2013, Rio de Janeiro.
  • April 2013, ‘Curry’s Paradox and Substructural ProofTheory for Relevant Logic’, Unilog 2013, Rio de Janeiro.
  • * May 2013, ‘Much Ado about Nothing’, Fiction Workshop, University of Barcelona.
  • May 2013, ‘Revising Logic’, Philosophy and Logic – 2013, Taras Shevchenko National University of Kiev.
  • une 2013, ‘Much Ado about Nothing’, Priestfest, University of Melbourne.
  • June 2013, ‘Revising Logic, Meeting of the Australasian Association for Logic, University of Melbourne.
  • July 2013, ‘Nagarjuna’s Mulamadhyamakakarika’, Tuebingen Workshop on Metaphysics.
  • July 2013, `Nagarjuna and the Catuskoti’ (three lectures), Dharmagate College, Budapest.
  • * September 2013, ‘Revising Logic’, Conference on Logic and the Philosophy of Science 13, University of Gent.
  • October 2013, ‘Sein Language’, Fiction/alism, the University of Hamburg.
  • *November 2013, ‘Modal Meinongianism and Characterisation’, The Nature of Fictional Characters, University of Goettingen.
  • December 2013, ‘The End of Inclosure?’, Logical Consequence and Paradox, Ruhr University of Bochum.
  • *December 2013, ‘The Logical Structure of Dialectic’, Logic and Politics, University of Paderborn.
  • *December 2013, ‘Self-Deception and Disagreement’, Disagreement, Logic and Politics, University of Milan
  • *December 2013, ‘Much Ado About Nothing’, On Contradiction, University of Padua
  • *February 2014, `None of the Above’, 5th World Congress on Paraconsistency, Calcutta. [Cancelled for visa reasons.]
  • *February 2014, ‘Paraconsistent Set Theory, Sir Artoush Seminar on the Foundations of Mathematics, Calcutta. [Cancelled for visa reasons.]
  • *March 2014, ‘Buddhist Ethics: a Perspective’, Austin and Hempel Lecture, Dalhousie University, Halifax NS.
  • *March 2014, Workshop with Graham Priest, University of Muenster, ‘The Conditional of the T-Schema’
  • *April 2014, ‘Comments on Dutilh Novaes, Gottlieb, and Ripley’ Meeting of the APA, San Diego.
  • *May 2014, ‘Intelligibility Ineffability Inconsistency’, Intelligibility: Alberta Postgraduate Conference, University of Alberta.
  • *June 2014, ‘The Net of Indra’, Fundamentality and Metaphysical Infinitism, University of Helsinki.
  • *June 2014, ‘Models of Paraconsistent Set Theory’, Paraconsistent Reasoning in Science and Mathematics, University of Munich.
  • *June 2014, ‘Paraconsistent Deontic Logic’, Riddles and Other Paraconsistencies in Deontic Logic, Indexicals Research Institute, Vienna.
  • * June 2014, ‘Does Truth Detach?’, Logica 2014, Hejnlice, Czecc Republic.
  • July 2014, ‘Does Truth Detach?, Metaphysical Basis of Logic, University of Aberdeen.
  • * September 2014, ‘The Net of Indra’, 3rd International Conference of the International Dimension of Contemporary Neo-Confucianism, National Central University, Taipei.
  • * October 2014, ‘The structure of Dialectic’, Hegel, Analytic Philosophy, and Formal Logic, Purdue University.
  •  January 2015, ‘Speaking of the Ineffable’, Heidegger and Dogen’, Kyoto University, at a public symposium connected with the research project Contradictions in East Asian Philosophy.
  • * January 2015, ‘Sein Language’, 4th Californian Metaphysics Conference, Logic and Metaphysics, University of Southern California.
  • * March 2015, ‘Things are Not What they Appear’, 2nd International Colloquium on Colours and Numbers: How Colours Matter for Philosophy, Federal University of Ceará.
  • * April 2015, ‘The Answer to the Question of Being’, Philosophy at the Boundary: Re-examining the Divide between Anglo-American and Continental Philosophy, University of New Mexico.
  • * April 2015, ‘The Fifth Corner of Four’, Oxford Madhyamaka Workshop, Lady Margaret Hall.
  • * April 2015, ‘Everything is Possible’, DRIFT Festival if Ideas, Amsterdam.
  • * May 2015, ‘Objects that are not Objects’, Korean Society for Analytic Philosophy, Hankuk University, Seoul.
  • * May 2015, ‘The Net of Indra’, faculty lecture as the Visiting Shinhan Professor, Yonsei University, Sincheon Campus.
  • * June 2015, ‘Replies’, 1st Veritas Philosophy Symposium, Yonesi University, Songdo Campus.
  • * June 2015, ‘Objects that are not Objects’, Jowett Society, Oxford University.
  • * June, 2015, ‘Speaking of the Ineffable, East and West’, Logic Conference, University of Rijeka.
  • June 2015, ‘What’s Special about Classical Mathematics?’, Pluralism Conference, Inter-University Centre, Dubrovnik.
  • * June 2015, ‘Marxism and Buddhism: Not so Strange Bedfellows’, One, workshop with Graham Priest, University of Muenster.
  • * June 2015, ‘What’s Special about Classical Mathematics’, Logic in Bochum 1, University of Bochum.
  • * June 2015, ‘Plurivalent Logic, the Saptabhangi, and the Catuskoti’, Unilog 2015, the University of Istanbul.
  • * June 2015, ‘Thinking the Impossible’, Thinking the Impossible, University of Turin.
  • * July 2015, ‘The Net of Indra’, Australian Society for Asian and Comparative Philosophy, Monash University.
  • * September 2015, ‘Thinking the Impossible’, Logicidad, Universidad Nacional Autonoma de Mexico.
  • * September 2015, ‘What’s the Specificity of Classical Mathematics?’, Mathematical Pluralism’, Universidad Nacional Autonoma de Mexico.
  • *September 2015, ‘How do you know what the right logic is?’, Bridges 2, Rutgers University.
  • * September 2015, ‘A Logue’, Fictionality, Factuality, Reflexivity, Hamburg University.
  • * September 2015, `Four Corners: Logic and Paradox in Madhyamaka Buddhism’ (with Jay Garfield), Hausser Lecture, Montana State University.
  • November 2015, ‘What’s the Specificity of Classical Mathematics?’, Midwest Conference on the Philosophy of Mathematics, 2015, University of Notre Dame.
  • * November 2015, ‘Contradiction and the Instant of Change Revisited’, Limit Decision Problems: Medieval and Contemporary Perspectives’, Topoi Excellence Cluster, Berlin.
  • * December 2015, ‘The Net of Indra’, meeting of the North American Association for Korean Philosophy, University of Toronto.
  • * December 2015, ‘It All Depends’, The Metaphysics and Epistemology of Grounding and Fundamentality, CUNY Graduate Center.
  • * December 2015 ‘Buddhism and Marxism: Points of Intersection’ (with Karsten Struhl), Columbia Society for Comparative Philosophy.
  • * December 2015, ‘Some New Thoughts on Conditionals’, 20th Amsterdam Colloquium, ILLC/Department of Philosophy, University of Amsterdam.
  • * January 2016, ‘Marxism and Buddhism: Unlikely Bedfellows’. American Philosophical Association, Washington.
  • * January 2016, ‘Comments on Shapiro’, American Philosophical Association, Washington.
  • * January 2016, ‘Does Truth Detach?’, Frontiers of Non-Classicality, University of Auckland.
  • * February 2016, ‘Some New Thoughts on Conditionals’, IV Congreso Colombiano de Logica, Epistemologia y Filosofia de la Ciencia, Universidad de los Andes, Bogota.
  • * March 2016, ‘It all Depends: Buddhism andMetaphysical Dependence’, The Morris Colloquium 2016: Metaphysics and its History. University of Colorado, Boulder.
  • * March 2016, ‘Knots in the Dao’, American Philosophical Association (Western Devision), San Francisco.
  • * April 2016, Selfridge Lectures in Philosophy, Lehigh University, ‘Marxism and Buddhism: Not so Strange Bedfellows’, and ‘Philosophy and its History’.
  •  *May 2016, ‘Kant’s Excessive Tenderness for Things in the World, and Hegel’s Dialetheism’, Logic in Kant’s Wake, McMaster University.
  • June 2016, ‘Paradoxical Propositions’, Workshop: Cardinality, Worlds and Paradox, University of Oslo.
  • *June 2016, ‘Imagination, Non-Existence, Impossibility’, The Internal Senses in the Aristotelian Tradition, University of Gothenburg.
  • * June 2016, a series of lectures at the University of Padua, ‘Dilaletheism and he History of (Western) Philosophy.
  • * June 2016, ‘The Fifth Corner of Four’, Workshop on the Fifth Corner of Four, University of Paderborn.
  • * June 2016, ‘Some New Thoughts on Conditionals’, Logic in Bochum II, Bochum University.
  • * September 2016, ‘Objects that are not Objects’, What in the World(s)?!, Vienna Forum for Analytic Philosophy, 5th Graduate Conference, Vienna.
  • * September 2016, ‘Waismann on Fiction and its Objects’, Friedrich Waismann’s Legacy and Presence, University of Vienna
  • * October 2016, ‘It was so Revolting I Couldn’t Take my Eyes off it’, 13th Annual Virginia Tech Graduate Philosophy Conference, Virginia Tech, Blacksburg.
  • * November 2016, ‘LP and Some of its Model Theory’ and ‘Goedel’s Theorem: Inconsistency vs Incompleteness’, Incompleteness Revisited, a meeting of the Swiss Graduate Society for Logic and the Philosophy of Science, Bern University.
  • * November 2016, ‘Counterfactuals and Theory-Choice’, Logic as Science, 1st Conference of the Anti-Exceptionalism Project, University of Bergen.
  • * March 2017, ‘It was So Revolting that I Couldn’t Take my Eyes off it’, Kretzmann lecture, Cornell University.
  • * April 2017, ‘The Dao is not So Silent: a Tribute to Raymond Smullyan’, Remembering Raymond Smullyan (Memorial Conference), CUNY Graduate Center.
  • * May 2017, Philosophische Meisterkurs, Munich University.
  • *June 2017, Kyoto Philosophical Logic Workshop II, ‘Logical Theory-Choice: the Case of Vacuous Counterfactuals’.
  • *June 2017,  An International Workshop on the Cosmos of Dōgen, Kyoto University, ‘Dōgen, Heidegger, and Nothingness’ (with Filippo Casati).
  • * June 2017,Dialetheism and Related Issues in Analytic Asian Philosophy: an International Workshop, Kyoto University, ‘Daode Jing and Mūlamadhyamakakārikā; Making Sense of Ineffability’.
  • July 2017, Australasian Association of Philosophy, University of Adelaide, ‘Fictional Objects Fictional Subjects’.
  • July 2017, Australasian Association for Logic, University of Adelaide, ‘Evans’ Argument and Vague Objects’.
  • * August, 2017, Ontology: International Summerschool on Philosophy, ‘Contradiction and Reality. Lecture 1: Paraconsistency and Dialetheism. Lecture 2: Hegel and Heidegger. Lecture 3: Everything and Nothing’.
  • *November 2017, Ernst Robert Curtius Lecture, University of Bonn, ‘Everything and Nothing’.
  • *February 2018, Edinburgh University Student Philosophy Society, ‘Objects that are not Objects’.
  • *February 2018, Ouroboros 2018: Formal Criteria of Self-Reference in Mathematics and Philosophy, University of Bonn, ‘This Sentence is not Provable’.
  • *February 2018, University College London Student Philosophy Society, ‘Objects that are not Objects’.
  • *February 2018, Doing Metaphysics in Non-Classical Logic, University of Lisbon, `Objects that are not Objects’.
  • * March 2018, All’Alba Dell’Eternita: I Primi 60 Anni de’la Struttura Originaria, Brescia, ‘Emanuele Severino, and the Principle of Non-Contradiction’.
  • * April 2018, Medieval Logic and its Contemporary Relevant, University of St Andrews, ‘Some Contemporary Solutions to Some Medieval Problems about the Instant of Change’.
  • * May 2018, As Formas da Razão, Universidade de Brazília, ‘Gödel’s Theorem and Paraconsistent Logic’.
  • * June 2018, Contradictions: Past and Present, Department of Philosophy, University of Leeds, ‘The Logical Structure of Dialectics’.
  • * June 2018, UNILOG2018, Vichy, ‘It was so Revolting I couldn’t take my eyes off it’.
  • * June 2018, UNILOG2018, Vichy, ‘It was so Revolting I couldn’t take my eyes off it’.
  • * June 2018, UNILOG2018, Vichy, ‘Dialetheic Metatheory’.
  • * August 2018, Melbourne Logic Group, Meeting inn Honour of Ross Brady, ‘Bery’s Paradox, Again…’
  • * September 2018, Non-Classical Modalities, National Autonomous University of Mexico, ‘Evans Argument and Vague Objects’.
  • * September 2018, Non-Classicality Aufgehoben, National Autonomous University of Mexico, ‘Dieletheic Metatheory’.
  • November 2018, 21st International Workshop, Political Science from the South, and Colloquium of Philosophy, Havana, ‘Marxism and Buddhism: Selves and Persons’.
  • * November 2018, 9th Analytic Philosophy Symposium, University of Austin, Texas, ‘Philosophy and its History’.
  • * December 2018, What’s so Bad about Dialetheism?, Kyoto University, ‘A Logue’
  • December 2018, What’s so Bad about Dialetheism?, Kyoto University, ‘The Logical Structure of Dialectic’
  • * December 2018, Kyto Workshop on the Self, I, Kyoto University, ‘Fictional Object Fictional Subject’.
  • * January 2019, Conditional Logics and Conditional Reasoning: New Joint Perspectives, Schloss Dagstuhl, Germany, ‘Conditionals: a Logician’s Perspective’.
  • * March 2019, Anti-Exceptionalism and Pluralisms: from Logics to Mathematics, IUSS, Pavia, ‘Mathematical Pluralism and Logical Pluralism’.
  • * March 2019, Public Lecture, Free University of Amsterdam, ‘Marxism and Buddhism: Radical Alternatives’.  EVENT CANCELLED DUE TO FLIGHT CANCELLATION.
  • *March 2019, CUNY-Milan Interdisciplinary Workshop, University of Milan, ‘Socrates Starts to be White: Medieval Accounts of Tense and Change’.
  • May 2019, Inaugural Pan-American Symposium on the History of Logic: Validity Throughout History, UCLA, ‘Buddhist and Jain Logic: Forerunners of Modern Paraconsistency?’
  • * June 2019, Curing Through Questioning: Philosophy as Therapy Across Ancient Traditions and Modern Applications, Worcester College, Oxford, ‘Buddhism Philosophy Compassion’.
  • * June 2019, Exceptionalist and Anti-Exceptionalist Perspectives on Logic, Hebrew University of Jerusalem, ‘Anti-Exceptionalism and Logical Pluralism’.
  • * July 2019, Learning from Buddhist Logic, Australian National University, Canberra, ‘Speaking of Nothing…’.
  • * September 2019, American Mathematical Society, Fall Central Sectional Meeting,
  • * University of Wisconsin, Madison, ‘Goedel’s Theorem and Paraconsistency’.
  • September 2019, CUNY/Bergen Workshop on Anti-Exceptionalism about Logic, CUNY Graduate Center, ‘Anti-Exceptionalism and Non-Deductive Inference’.
  • * October 2019, 19th Trends in Logic, Higher School of Economics, Moscow, ‘Reflections on Orlov’.
  • *October 2019, Logicians’ Liberation League: 50 Years of Services to Logic, UNAM Mexico City, ‘Myer’s Paradox’.
  • * November 2019, ManyVal 2019, University of Bucharest, ‘Evans’ Argument and Vague Objects’.
  • *November 2019, The Logic of Paradox after 40 Years, Ruhr University of Bochum, ‘Gödel’s Theorem and LP’ and ‘LP, Forty Years On’.
  • * December 2019, St Andrews Philosophy Society, ‘Nothing’.
  • * January 2020, International Seminar on the Relevance of Indian Philosophy to Contemporary Western Philosophy, RamaKrishna Mission, Kolkata, ‘Marxism and Buddhism: Radical Alternatives. A Prolegomenon to Change’.
  • * January 2020, Beyond Classical: a workshop on Philosophy and Science, National Institute of Technology, Durgapur, ‘Paraconsistency: Mathematics and Mind’.
  • *January 2020, 14th Nalanda Dialogue. Causality in Philosophy and Modern Science, Nava Nalanda Mahavira, Nalanda, ‘Form Pratityasamutpada to the Net of Indra’. 
  • March-July 2020. All of the following talks and events were cancelled due to the Corona virus pandemic. *March, Philosophy of Mathematics Seminar, Princeton University, ‘Perspectives on the Universe’. *March, New England Logic and Language Colloquium, Yale University, ‘Perspectives on the Universe’. *April, American Philosophical Association, San Francisco, ‘Nishida, Nothingness, and the Ground of Reality’. *April, Joint Utrecht/Bergen Logic Conference, Utrecht University, ‘Reflections on Orlov’. *May, Logic of Paradox and Logical Pluralism, Ruhr University of Bochum, ‘Logical Abductivism and Non-Deductive Inference’. *May, Utrecht Philosophy Lecture, ‘Marxism and Buddhism: Radical Alternatives. A Prolegomenon to Change’. *May, Utrecht University, Postgraduate Workshop, ‘Everything and Nothing’. *June, Rational Dilemmas, University of New Brunswick, ‘Rational Dilemmas and their Place in the Bigger Picture’. *June, Interpreting and Modelling Worlds,  Technical University, Berlin, ‘That’s Impossible’.   *June, Logic of Conceivability, University of Amsterdam, ‘That’s Impossible’. *July,  São Paulo Advanced School in Logic. Rationality and Information, University of Campinas, ‘Paraconsistency and its History’.
  • * May 2020, Utrecht/Bergen Logic Group, ‘What  is an Impossible World?’ [Remotely]
  • * June 2020, St Petersburg/Moscow Logic Group, ‘Perspectives on the Universe’ [Remotely]In addition to these I have read papers at Departmental Research Seminars and Colloquia at numerous universities in Australia, New Zealand, Singapore, Hong Kong, Macau, Taiwan, Japan, Korea, China, India, USA, Canada, Mexico, Brazil, Argentina, South Africa, UK, Ireland, Belgium, the Netherlands, France, Spain, Portugal, Sweden, Germany, Austria, Hungary, Italy, Switzerland, Russia, Poland, Romania, Turkey, and Bulgaria.
  • May 2020, Utrecht/Bergen Logic Group, ‘What  is an Impossible World?’ [Remotely]

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  1. Current Research ProjectsI have a book coming out with Oxford University Press on Buddhist metaphysics later this year: The Fifth Corner of Four. I am just starting to write a book on Buddhism and Marxism. Provisional title: the point, however, is to change it.

Papers in Press

A Log
Dialetheism and the Sorites
Attraction and Repulsion
Logical Theory Choice: the Case of Vacuous Counterfactuals
Natural Deduction Systems for Logics in the FDE Family
Imagination, Non-Existence, Impossibility
Kant’s Excessive Tenderness for Things in the World, and Hegel’s Dialetheism
Characterisation, Existence, Necessity
Paradoxical Propositions
Fictional Objects Fictional Subjects
Waismann on Fiction and its Objects
Williamson on Counter-Possibles (with Franz Berto, Rohan French, and Dave Ripley)
The Catuṣkoṭi
Heidegger and Dōgen on the Ineffable (with Filippo Casati)
Inside Aussersein (with Filippo Casati)
From the Foundations of Mathematics to Mathematical Pluralism
On Ivanhoe on Oneness
?Can Buddhist and Jain Logic be Seen as Forerunners of Modern Paraconsistent Logic?
Dao De Jing and Mūlamadhyamakakārikā: Making Sense of Ineffability
Marxism and Buddhism: Not such Strange Bedfellows
Skill and Virtuosity in Buddhist and Daoist Philosophy (with Jay Garfield)
Review of Logical Studies of Para-consistent Reasoning in Science and Mathematics
Metaphysics and Logic: an Observation in Metametaphysics
Metaphysical Necessity: A Skeptical Perspective

Berry’s Paradox, Again…

Papers in Draft

A Model of Dialectics
Evans’ Argument and Vague Objects
Severino and the Principle of Non-Contradiction
Some Contemporary Solutions to some Medieval Problems about the Instant of Change
Modal Meinongianism and Object Theory: a Reply to Bueno and Zalta (with Franz Berto, Filippo Casati, and Naoya Fujikawa)
Why Philosophy?
Everything and Nothing
Dialetheic Metatheory
Logical and Mathematical Pluralism

Berry’s Paradox, Again…

Papers to be Drafted

*Limits of Intelligibility
Gödel’s Theorem and Dialetheism?
Inconsistent Boundaries which are Also Grounds
The Pluriverse and Mathematical Pluralism
*Intellectual Biography

* For deadlines

  1. Other Relevant Experience


a) Positions in Professional Societies


  • 1977-80: Foundation President of the W.A. Society for the History and Philosophy of Science


  • 1983-84:Secretary, Australasian Association for Logic


  • 1988-95: General Secretary, Australasian Association for Logic


  • 1989-90: Foundation Vice-President, Australasian Cognitive Science Association


  • 1992-2000:Member of  the Association for Symbolic Logic, Standing Committee for Logic in Australasia


  • 1996-2009: Chair of Council, Australasian Association of Philosophy


  • 1998-2003 : First Vice President, International Union for Logic, Philosophy and Methodology of Science

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b) Work for Journals


  • Late 1970s – 1999: Reviewer for the Zentralblatt fur Mathematik.


  • Late 1970s-Early 1980s: Editorial Board, Australian Logic Teacher’s Journal.


  • Early 1980s – 1997:Editorial Board, Australasian Journal of Philosophy.


  • Early 1990 – 1995 : Advisory Editor, Studia Logica.


  • 1995 – 2000 : Reviews Editor, Studia Logica.


  • 1997 – : Associate Editor, Australasian Journal of Philosophy.


  • 2000 – : Editorial Board, Studia Logica.


  • 2011 – : Editor, Review of Symbolic Logic


I am currently also on the advisory boards of Philosophy, Logic and Logical Philosophy, Journal of Philosophical Logic, Studies in Logic, though I have not kept records of the dates of appointment.

I  referee regularly for journals.  In the last few years, I have refereed for journals  including: Journal of Philosophical Logic, Notre Dame Journal of Formal Logic, Logique et AnalyseStudia LogicaAustralasian  Journal  of  PhilosophySynthese, Analysis, Mind,  British  Journal  for the  Philosophy  of Science,Philosophical Quarterly and a number of others.

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c) Community Activities

  • Numerous External Education courses on philosophy (including some in prisons), and occasional lectures to bodies such as the Royal Society of WA.


  • Talks to schools.


  • Numerous public lectures, talks in philosophy cafes, and similar occasions.

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d) Media Activities

  • Philosophy broadcasts for 6UVFM (Perth) and ABC,Radio National.


  • Articles for the Brisbane Courier Mail, the Australian, and the New York Times.


  • ‘What is Philosophy?’, a video made for the Australasian Association of Philosophy.


  • Many radio interviews, e.g., on the ABC’s Philosopher’s Zone, Filosofiska Rummet (Sweden)

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e) Dramatic Activities

  • Editor of two Platonic dialogues and a Stoppard play.


  • Writer of two other philosophical plays.


  • Producer of all the above for public audiences with professional director and actors.(I played  a small role in one.)

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f) Student Activities

  • Frequent attender, and occasional lecturer, at Student Philosophy Society meetings and camps at all the universities at which I have worked.


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