"Ontological Problems for Structuralism",
Structuralism in Physics and Mathematics, Bristol University, September 2012.

"Do we live in a brain-based simulation?",
Persons and their Brains, Ian Ramsey Centre, Oxford University, July 2012.

"Buddhism without reincarnation? Examining the prospects of a 'naturalized Buddhism'.",
Columbia Society for Comparative Philosophy, Columbia University, March 2012.
A podcast of this talk can be found here.


"Naturalizing Buddhism?",
Contemporary Perspectives on Buddhist Ethics, Center for Buddhist Studies, Columbia University, October 2011.
A podcast of the event can be found here.

"Arguments for ontological foundations",
Joint Session, University of Sussex, July 2011.

"Some problems from Nagarjunas Vaidalyaprakarana",
International Association of Buddhist Studies Conference, Taipei, July 2011.

"The five ways to ontological foundations,
Faculty of Philosophy, University of Oxford, April 2011.

"The ontologically fundamental Level",
Department of Philosophy, University of York, February 2011.

"Translating texts, translating contents",
Tengyur Translation Conference, American Institute of Buddhist Studies, Central Institute of Tibetan Studies, January 2011.


"Anti-foundation and conventional existence"
Department of Philosophy, Seoul National University, September 2010.

"Madhyamaka, Constructivism, and Foundations"
Department of Philosophy, Chonnam National University, September 2010.

"The ancient Indian controversy about the self",
International Conference on Hindu Responses to Buddhist Critiques of the Self, University of Sussex, September 2010.

"Nectar, Pus, and Water: Interpreting the Example of the 'Three Cups of Liquid'"
University College Dublin, Dublin, July 2010.

"The role of rationality in Madhyamika thought",
Madhyamaka and Methodology Symposium, Smith College, April 2010.
Full audio and video recordings of this event are available here.

"Arguments for Ontological Foundation'"
Department of Philosophy, Durham, February 2010.


"Categories and Madhyamaka"
Oxford Centre for Hindu Studies, Oxford, October 2009.

"Nagarjuna's philosophy of language as described in the Vigrahavyavartani"
Kyoto University, Kyoto, September 2009.

"A Problem for Goodmanian Constructivism"
University of East Anglia, Norwich, July 2009.


"The anti-realist's dilemma and other philosophical problems"
Columbia University, New York City, December 2008.

"Conventionally existent objects: a game-theoretic model"
Tribhuvan University, Nepal, November 2008.

"Some problems from Nagarjuna's Vigrahavyavartani"
University of Chicago, Chicago, October 2008.

"Conventional truth and the emptiness of emptiness"
Emory University, Atlanta, July 2008.


"Nagarjuna's Madhyamaka: Some philosophical problems",
Columbia Society for Comparative Philosophy, Columbia University, October 2007.
A podcast of this talk can be found here.


"Nagarjuna's conception of svabhava"
University of Kathmandu, Nepal, July 2006.

"What do the Madhyamikas mean by 'inherent existence'?"
Oriental Institute, Oxford, May 2006.


"Two Kinds of Negation"
Westminster College, Cambridge, November 2005.

"Pictorial Implication"
20th Conference of the German Society for Philosophy (DGPhil), Berlin, September 2005.

"The Concept of Substance in Madhyamika Philosophy"
School of Oriental and African Studies, London, August 2005.


"Logical relations between pictures"
Workshop on Pictorial and Linguistic Representation, Oxford, November 2004.

"Are there innate mathematical concepts?"
Joint Session of the Mind Association and the Aristotelian Society, Canterbury, July 2004.

"Cognitive Structuralism"
Department of Pure Mathematics and Theoretical Physics, Cambridge, April 2004.

"The Knowledge of Mathematical Structures"
Faculty of Philosophy, Oxford, April 2004.


"The problematic status of ontological categories"
5th Conference of the German Society for Analytic Philosophy (GAP), Bielefeld, September 2003.

"Typings and Ontological Hierarchies"
21st World Congress of Philosophy, Istanbul, August 2003.

"Facts and their Constituents"
Joint Session of the Mind Association and the Aristotelian Society, Belfast, July 2003.

"The Problematic Status of Ontological Categories"
Moral Sciences Club, Cambridge, February 2003.


"Ramsey's Problem"
19th Conference of the German Society for Philosophy (DGPhil), Bonn, September 2002.

"The Underdetermination of Typings"
Metaphysics Graduate Conference, Leeds, August 2002.

"A Generalized Solution to Ramsey's Problem"
4th European Conference of Analytic Philosophy (ECAP), Lund, June 2002.


"Are there metamathematical arguments showing that Leibniz's characteristica universalis is an impossible project?""
8th International Leibniz Congress, Berlin, September 2001.

"A Definition of Ontological Categories in an Expansion of Belief Dynamics"
European Summer School for Symbolic Logic, Language and Information, Helsinki, August 2001.

"A Carnapian Construction of Ontological Categories"
Conference on the Vienna Circle and Logical Empiricism, Vienna, June 2001.

"Defining 'Ontological Category'"
Joint Session of the Mind Association and the Aristotelian Society, York, June 2001.

"A Definition of Ontological Categories in an Expansion of Belief Dynamics"
Logic and Logical Philosophy 3, Dresden, April 2001.

"Defining 'Ontological Category'"
Harvard/MIT Graduate Conference, Cambridge, USA, March 2001.


"The Definition of Ontological Categories"
Department of Philosophy, Cambridge, November 2000.

"Gödel, Frege and Leibniz's Dream"
History of Philosophy of Science Conference, Vienna, July 2000.

"Ontologische Notwendigkeit"
Lindenthal-Institut, Cologne, March 2000.


"Some Problems of Metaontology"
Department of Philosophy, Cambridge, November 1999.


"A Dispensable Discipline? The Progress of Science and the Place of Philosophy"
University of Fribourg, Switzerland, February 1998.