# Recent writing

# Recent writing

**Victoria Gitman**Set theory in second-order**Joel David Hamkins**The modal logic of potentialism, ILLC Amsterdam, May 2019**Joel David Hamkins**Is there just one mathematical universe? DRIFT, Amsterdam, May 2019**Joel David Hamkins**Philosophy of Mathematics, graduate lecture seminar, Oxford, Trinity term 2019**Victoria Gitman**Kelley-Morse set theory does not prove the class Fodor principle**Victoria Gitman**Set theories with classes**Victoria Gitman**A primer on the set-theoretic multiverse**Joel David Hamkins**Kelley-Morse set theory does not prove the class Fodor principle**Nick Gill**A Rodgers-Saxl type conjecture for characters**Nick Gill**A Rodgers-Saxl type theorem