Despite being relatively small, my department has three faculty in finite combinatorics, in addition to having me in logic. I recently gave a series of two talks in our seminar to present a broad overview of classical computability theory, and to present some more recent applications to mathematics, via Reverse Mathematics and via Weihrauch Reducibility.

### Boole’s Rings

- 50 Years of Set Theory in Toronto, May 2019 May 19, 2019 Assaf Rinot
- The connect-infinity game! April 30, 2019 Joel David Hamkins
- A model of second-order arithmetic satisfying ${\rm AC}$ but not ${\rm DC}$ April 26, 2019 Victoria Gitman
- Set theory in second-order April 19, 2019 Victoria Gitman
- The modal logic of potentialism, ILLC Amsterdam, May 2019 April 15, 2019 Joel David Hamkins

### Comments on Boole’s Rings

- Comment on The multiverse view in set theory, Singapore 2011 by A multiverse perspective on the axiom of constructiblity | Joel David Hamkins May 20, 2019 Comments for Joel David Hamkins
- Comment on Modal principles of potentialism, Oxford, January 2018 by David Roberts May 12, 2019 Comments for Joel David Hamkins
- Comment on Modal principles of potentialism, Oxford, January 2018 by Joel David Hamkins May 12, 2019 Comments for Joel David Hamkins
- Comment on Math for eight-year-olds: graph theory for kids! by Joel David Hamkins May 12, 2019 Comments for Joel David Hamkins
- Comment on Modal principles of potentialism, Oxford, January 2018 by David Roberts May 12, 2019 Comments for Joel David Hamkins