On the failure of identity

Last week, I had the great pleasure of attending a master class tutorial on potentialism, a part of a two-day event with Joel David Hamkins dedicated to the decennial anniversary of his multiverse theory held at the University of Konstanz. One of the topics discussed was a situation where one or more individuals cease to […]

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Modal theory of the category of sets

This was a talk for the Junior Logic Seminar at the University of Oxford, 7th of June 2022. Abstract. I shall investigate the modal theories and validities in a variety of cases arising from the archetypical concrete category of sets and functions. I introduce new insights into the method of control statements, answering a MathOverflow […]

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Modal model theory

This blog post from August 2019 now includes an update with regard to a result that is now revoked. Research has its ups and downs… I would like to share with you a brief description of what I have been doing at Oxford for the past eight months. Since my adviser has already written about […]

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