# Recent writing

- A deflationary account of Fregean abstraction in set theory, with Basic Law V as a ZFC theorem, Paris PhilMath Intersem 2023Joel David Hamkins
- Set theory with abundant urelements, STUK 10, Oxford, June 2023Joel David Hamkins
- Natural Instances of Illfoundedness and Nonlinearity in the Hierarchy of Consistency Strength, Oxford Phil Math Seminar, May 2023Joel David Hamkins
- A Shelah group in ZFCAssaf Rinot
- How to find pointwise definable and Leibnizian extensions of models of arithmetic and set theory, Oxford Logic Seminar, May 2023Joel David Hamkins
- Infinite games—strategies, logic, theory, and computation, Northeastern, June 2023Joel David Hamkins
- Gdańsk Logic Conference, May 2023Assaf Rinot
- Realizing Frege’s Basic Law V provably in ZFC, New York, May 2023Joel David Hamkins
- Set-theoretic forcing as a computational process, Midwest Computability Seminar, Chicago, May 2023Joel David Hamkins
- How to prove theorems?Asaf Karagila
- Varieties of potentialism, Oslo, April 2023Joel David Hamkins
- 2023 Stagecoach 400Dana C. Ernst
- Natures of Proof, Pacific APA, San Francisco, April 2023Joel David Hamkins
- Pointwise definable and Leibnizian extensions of models of arithmetic and set theory, Madison Logic Seminar, April 2023Joel David Hamkins
- A series of lectures on Club_AD, February–March 2023Assaf Rinot
- Borel classification of conjugacy problemsSamuel Coskey
- The Math Tea argument: must there be numbers we can neither describe nor define? Barcelona March 2023Joel David Hamkins
- Winter School in Abstract Analysis, January 2023Assaf Rinot
- Five fabulous activities for your math circleSamuel Coskey
- 2023 Combinatorial Game Theory ColloquiaDana C. Ernst
- Tukey morphisms between finite relationsSamuel Coskey
- A survey of set-theoretic geology, Notre Dame Logic Seminar, January 2023Joel David Hamkins
- Paradox, Infinity, & The Foundations of Mathematics, interview with Robinson Erhardt, January 2023Joel David Hamkins
- Safe spacesAsaf Karagila
- Infinity, University of Notre Dame, Spring 2023Joel David Hamkins

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