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

- Bi-interpretation in set theory, Bristol, February 2020 January 22, 2020 Joel David Hamkins
- Fake Reflection January 20, 2020 Assaf Rinot
- Bi-interpretation in weak set theories January 16, 2020 Joel David Hamkins
- A Microscopic approach to Souslin-tree constructions. Part II January 7, 2020 Assaf Rinot
- Philosophy meets maths, Oxford, January 2020 January 7, 2020 Joel David Hamkins

### Comments on Boole’s Rings

- Comment on Bi-interpretation in weak set theories by Bi-interpretation in set theory, Bristol, February 2020 | Joel David Hamkins January 22, 2020 Comments for Joel David Hamkins
- Comment on A new proof of the Barwise extension theorem, without infinitary logic by The $Sigma_1$-definable universal finite sequence | Joel David Hamkins January 14, 2020 Comments for Joel David Hamkins
- Comment on Lectures on the philosophy of mathematics, Oxford, Michaelmas term 2019 by Joel David Hamkins January 8, 2020 Comments for Joel David Hamkins
- Comment on Lectures on the philosophy of mathematics, Oxford, Michaelmas term 2019 by Klaus Loehnert January 8, 2020 Comments for Joel David Hamkins
- Comment on Climb into Cantor's attic by Joel David Hamkins January 4, 2020 Comments for Joel David Hamkins