Adam Caulton Associate Professor Clarendon University Lecturer and Tutor in Philosophy, Balliol College

Alexander Paseau Professor of Mathematical Philosophy Stuart Hampshire Fellow and Tutor in Philosophy, Wadham College

James Studd Associate Professor of the Philosophy of Mathematics Fellow and Tutor in Philosophy, Lady Margaret Hall

25 Jan Philosophy of Mathematics Seminar (Monday - Week 2, HT21) David Corfield | Kent | Modal Homotopy Type Theory Online

14 Jan Philosophy of Mathematics (Monday - Week 1, HT19) Michal Godziszewski | Warsaw | 'Local disquotation, semantic non-conservativity of truth, and models of set theory' (Ryle Room)

28 Jan Philosophy of Mathematics (Monday - Week 3, HT19) Menachem Magidor | Hebrew University | 'Independence in mathematics: is it relevant?' (Ryle Room)

13 May Philosophy of Mathematics (Monday - Week 3, TT19) Florian Steinberger | Birkbeck | 'Logical Pluralism and Logical Normativity' (Ryle Room)

11 Feb Philosophy of Mathematics (Monday - Week 5, HT19) Mateusz Łełyk | Warsaw | 'Many ways of saying that axioms of PA are true' (Ryle Room)

27 May Philosophy of Mathematics (Monday - Week 5, TT19) Lavinia Picollo | UCL | 'A Theory of Untyped Structured Propositions' (Ryle Room)

18 Feb Philosophy of Mathematics (Monday - Week 6, HT19) Marcus Giaquinto | UCL | "A priori and a posteriori in mathematics" (Ryle Room)

10 Jun Philosophy of Mathematics (Monday - Week 7, TT19) Kentaro Fujimoto | Bristol | 'Predicates and second-order logic' (Ryle Room)

17 Jun Philosophy of Mathematics (Monday - Week 8, TT19) Volker Halbach | Oxford | 'The Fourth Grade of Modal Involvement' (Ryle Room)

17 Jan Philosophy of Mathematics (Thursday - Week 1, HT19) John Baldwin | Illinois | 'Philosophical implications of the paradigm shift in model theory' (Mathematical Institute L6)

14 Oct Philosophy of Mathematics Seminar (Monday - Week 1, MT19) Albert Visser | Utrecht | What is a Provability Predicate? (Ryle Room)

27 Jan Philosophy of Mathematics Seminar (Monday - Week 2, HT20) Tim Button | UCL | Loving the Universe (Ryle Room)

24 Jan Philosophy of Mathematics Seminar (Monday - Week 2, HT22) Chris Scambler | All Souls College | Axiomatic Potentialism Ryle Room, Radcliffe Humanities

23 Jan Philosophy of Mathematics Seminar (Monday - Week 2, HT23) Wesley Wrigley (London School of Economics): 'Absolutely Undecidable Arithmetical Propositions' Ryle Room, Radcliffe Humanities, and Online

22 Jan Philosophy of Mathematics Seminar (Monday - Week 2, HT24) Ali Enayat (University of Gothenberg): 'Categoricity-like properties in the first order realm' Ryle Room, Radcliffe Humanities, and Online

19 Oct Philosophy of Mathematics Seminar (Monday - Week 2, MT20) Patricia Blanchette | Notre Dame | Frege on Caesar and Hume's Principle Online

18 Oct Philosophy of Mathematics Seminar (Monday - Week 2, MT21) Eileen Nutting | Kansas | Approaches to Ordinal Abstraction Online

17 Oct Philosophy of Mathematics Seminar (Monday - Week 2, MT22) Carlo Nicolai | King's College London | 'Graph conceptions of properties' Ryle Room, Radcliffe Humanities, and Online

16 Oct Philosophy of Mathematics Seminar (Monday - Week 2, MT23) Fenner Tanswell (Technische Universität Berlin) and Ásgeir Berg Matthíasson (University of Iceland): 'The Philosophical Implications of Using Large Language Models in Mathematics' Online Only

3 May Philosophy of Mathematics Seminar (Monday - Week 2, TT21) Sorin Bangu | Bergen | Two dualisms in later Wittgenstein's writings on mathematics Online

2 May Philosophy of Mathematics Seminar (Monday - Week 2, TT22) Carolin Antos | Konstanz | 'Defective concepts and pluralism in mathematics' Ryle Room, Radcliffe Humanities, and Online

1 May Philosophy of Mathematics Seminar (Monday - Week 2, TT23) Daniel Isaacson (Oxford): 'Kripke on Gödel incompleteness' Ryle Room, Radcliffe Humanities, and Online

29 Apr Philosophy of Mathematics Seminar (Monday - Week 2, TT24) Laura Crosilla (University of Oslo): 'Predicativity as Invariance' Ryle Room, Radcliffe Humanities, and Online

28 Oct Philosophy of Mathematics Seminar (Monday - Week 3, MT19) Sam Roberts | Oslo | Ultimate V (Ryle Room)

10 Feb Philosophy of Mathematics Seminar (Monday - Week 4, HT20) Martin Fischer | Munich | Predicativity, Potentiality and Partiality (Ryle Room)

8 Feb Philosophy of Mathematics Seminar (Monday - Week 4, HT21) Mate Szabo | Oxford | Max Newman's Influence on Turing's Early Work Online

7 Feb Philosophy of Mathematics Seminar (Monday - Week 4, HT22) Kit Fine | NYU | Postulation and Possibility Ryle Room, Radcliffe Humanities (and online)

6 Feb Philosophy of Mathematics Seminar (Monday - Week 4, HT23) Mary Leng (York University): 'To Be (Thin) or Not To Be? Are Thin Objects Fictional or Are Fictional Objects Thin?' Ryle Room, Radcliffe Humanities, and Online

5 Feb Philosophy of Mathematics Seminar (Monday - Week 4, HT24) The Philosophy of Mathematics Seminar for week 4 has been cancelled.

29 Oct Philosophy of Mathematics Seminar (Monday - Week 4, MT18) Joel Hamkins | Oxford | 'On Set-Theoretical Mereology as a Foundation of Mathematics' (Ryle Room)

2 Nov Philosophy of Mathematics Seminar (Monday - Week 4, MT20) Rebecca Morris | Intellectual virtues in mathematics Online

1 Nov Philosophy of Mathematics Seminar (Monday - Week 4, MT21) Joel Hamkins | Oxford | Fregean abstraction in Zermelo-Fraenkel set theory Online

30 Oct Philosophy of Mathematics Seminar (Monday - Week 4, MT23) Benjamin Marschall (Trinity College Cambridge): 'Carnap, the conventionalist' Ryle Room, Radcliffe Humanities, and Online

17 May Philosophy of Mathematics Seminar (Monday - Week 4, TT21) Charles Parsons | Harvard | Evidence and the hierarchy of mathematical theories Online

16 May Philosophy of Mathematics Seminar (Monday - Week 4, TT22) Alexander Roberts | Oriel College | 'Modality and modalities' Ryle Room, Radcliffe Humanities, and Online

15 May Philosophy of Mathematics Seminar (Monday - Week 4, TT23) Xinhe Wu (Bristol): 'Boolean-Valued Models of Set Theory with Urelements' Ryle Room, Radcliffe Humanities, and Online

13 May Philosophy of Mathematics Seminar (Monday - Week 4, TT24) William D'Alessandro (University of Oxford): 'Explanation in mathematics: a noetic account' (based on joint work with Ellen Lehet) Ryle Room, Radcliffe Humanities, and Online

11 Nov Philosophy of Mathematics Seminar (Monday - Week 5, MT19) Daniel Isaacson | Oxford | Kreisel’s Philosophy of Mathematics (Ryle Room)

7 Nov Philosophy of Mathematics Seminar (Monday - Week 5, MT22) A.C. Paseau and Fabian Pregel (Oxford): 'Deductivism: A New Appraisal' Ryle Room, Radcliffe Humanities, and Online

22 May Philosophy of Mathematics Seminar (Monday - Week 5, TT23) Joel David Hamkins (Notre Dame): 'Natural Instances of Illfoundedness and Nonlinearity in the Hierarchy of Consistency Strength' Ryle Room, Radcliffe Humanities, and Online

24 Feb Philosophy of Mathematics Seminar (Monday - Week 6, HT20) Peter Fritz | Australian Catholic University Melbourne | Why Intensionalism? (Ryle Room)

22 Feb Philosophy of Mathematics Seminar (Monday - Week 6, HT21) Peter Koellner | Harvard | Two Futures: Pattern or Chaos Online

21 Feb Philosophy of Mathematics Seminar (Monday - Week 6, HT22) Paolo Mancosu | Berkeley & Paris | How many points are in a line segment? From Grosseteste to the theory of numerosities Online

20 Feb Philosophy of Mathematics Seminar (Monday - Week 6, HT23) Juhani Yli-Vakkuri (Australian Catholic University) and Zachary Goodsell (University of Southern California): 'New Logical Foundations for Mathematics' Online Only

19 Feb Philosophy of Mathematics Seminar (Monday - Week 6, HT24) Sharon Berry (Indiana University Bloomington): 'Mathematical access worries and accounting for knowledge of logical coherence' Online Only

12 Nov Philosophy of Mathematics Seminar (Monday - Week 6, MT18) Laura Crosilla | Birmingham | 'Predicativity, Indefinite Extensibility and the Natural Numbers' (Ryle Room)

16 Nov Philosophy of Mathematics Seminar (Monday - Week 6, MT20) Stephen Yablo | MIT | How and why to be logically non-omniscient Online

15 Nov Philosophy of Mathematics Seminar (Monday - Week 6, MT21) Keith Hossack | Birkbeck | The Known Universe Ryle Room, Radcliffe Humanities

14 Nov Philosophy of Mathematics Seminar (Monday - Week 6, MT22) Wilfried Sieg (Carnegie-Mellon): 'Proofs as Objects' Ryle Room, Radcliffe Humanities, and Online

13 Nov Philosophy of Mathematics Seminar (Monday - Week 6, MT23) Chris Scambler (All Souls College Oxford): 'The Possibility of Potentialism' Ryle Room, Radcliffe Humanities, and Online

31 May Philosophy of Mathematics Seminar (Monday - Week 6, TT21) Andrea Reichenberger | Paderborn | Rózsa Péter on the philosophy and foundations of mathematics Online

30 May Philosophy of Mathematics Seminar (Monday - Week 6, TT22) Crispin Wright | NYU | Making Exceptions Online

29 May Philosophy of Mathematics Seminar (Monday - Week 6, TT23) Anna Bellomo (Vienna): 'Bolzano's Measurable Numbers' Ryle Room, Radcliffe Humanities, and Online

27 May Philosophy of Mathematics Seminar (Monday - Week 6, TT24) Carl Posy (Hebrew University): 'Model Theory, Intuitionism, and Paradox' Ryle Room, Radcliffe Humanities, and Online

19 Nov Philosophy of Mathematics Seminar (Monday - Week 7, MT18) James Ladyman | Bristol | 'The Philosophical Logic of Homotopy Type Theory' (Ryle Room)

25 Nov Philosophy of Mathematics Seminar (Monday - Week 7, MT19) Timothy Williamson | Oxford | Impossible Worlds and Semantic Compositionality (Ryle Room)

9 Mar Philosophy of Mathematics Seminar (Monday - Week 8, HT20) Hanoch Ben-Yami | Central European University | The Quantified Argument Calculus: Introduction, Overview, and Future Directions (Ryle Room)

8 Mar Philosophy of Mathematics Seminar (Monday - Week 8, HT21) Giovanna Corsi | Bologna | From Kripke to Lewis and beyond: A foundational study of quantified modal logic Online

7 Mar Philosophy of Mathematics Seminar (Monday - Week 8, HT22) Zeynep Soysal | Rochester | Fixing mathematical content Online

6 Mar Philosophy of Mathematics Seminar (Monday - Week 8, HT23) Andreas Ditter (Queen's College, Oxford): 'Higher-Order Essences' Ryle Room, Radcliffe Humanities, and Online

26 Nov Philosophy of Mathematics Seminar (Monday - Week 8, MT18) Alex Paseau | Oxford | 'Which Cardinality Quantifiers are Logical?' (Ryle Room)

30 Nov Philosophy of Mathematics Seminar (Monday - Week 8, MT20) Neil Barton | Konstanz | Algebraic levels and incomplete structures Online

29 Nov Philosophy of Mathematics Seminar (Monday - Week 8, MT21) Beau Mount | Konstanz | Goliath’s Sword: Repurposing Fictionalism to Tame Choice Sequences Online

28 Nov Philosophy of Mathematics Seminar (Monday - Week 8, MT22) Frederique Janssen-Lauret | Manchester: 'Founding Mothers: Women's Contributions to Logic in the Early Analytic Period' Ryle Room, Radcliffe Humanities, and Online

27 Nov Philosophy of Mathematics Seminar (Monday - Week 8, MT23) Hans Robin Solberg (Oxford): 'Are Large Cardinal Axioms in Bad Company?' Ryle Room, Radcliffe Humanities, and Online

14 Jun Philosophy of Mathematics Seminar (Monday - Week 8, TT21) Andrea Cantini | Florence | Reflecting and unfolding Online

13 Jun Philosophy of Mathematics Seminar (Monday - Week 8, TT22) Luca Incurvati | Amsterdam | 'On logical and scientific strength' Online

12 Jun Philosophy of Mathematics Seminar (Monday - Week 8, TT23) Andrew Bacon (University of Southern California): 'Mathematical Modality: An Investigation of Set-Theoretic Contingency' Online only

10 Jun Philosophy of Mathematics Seminar (Monday - Week 8, TT24) Douglas Blue (University of Pittsburgh): 'Hierarchies of Infinity' Ryle Room, Radcliffe Humanities, and Online