Recently I've had the pleasure of being interviewed on the blog of the American Philosophical Association. You can read the whole thing here: blog.apaonline.org/2025/09/12/a... You don't have to read the whole thing of course, but please enjoy the two snippets that I'm pretty proud of ;)

Ever dream of telling off your reviewers? One philosopher wrote up his version of doing so, and got it published...

I think this is quite interesting. Still not really sure what to make of the imo surprising results. Huge thanks to Gabe Goldberg and Pen Maddy for quite different forms of generous assistance.

"In philosophy especially, I figure the reader is nearly always gasping for breath, in danger of being swept out to sea, so the writer should do everything in their power to help..." Penelope Maddy is interviewed by Nathan Ballantyne - @nathanballantyne.bsky.social - at The Workbench

Jason Chen, Toby Meadows Teasing apart definitional equivalence https://arxiv.org/abs/2508.03956

Cesare Straffelini, Sebastiano Thei Higher Solovay Models https://arxiv.org/abs/2507.19129

Vladimir Kanovei, Vassily Lyubetsky Notes on the equiconsistency of ZFC without the Power Set axiom and 2nd order PA https://arxiv.org/abs/2507.11643

Yale Philosophy offers a course on “Formal Philosophical Methods” — a broad introduction to probability, logic, formal semantics, etc. Instructor Calum McNamara has now made all materials for the course (78 pages) freely available static1.squarespace.com/static/6255f...

I built a little Shiny app that shows how often various words were used in 20 prominent philosophy journals from 1980-2019. bweatherson.shinyapps.io/t20-graphs/

James Cummings, Yair Hayut, Menachem Magidor, Itay Neeman, Dima Sinapova, Spencer Unger The tree property on long intervals of regular cardinals https://arxiv.org/abs/2505.08118

My publisher wants alt text for my tikz figures, which is a good idea. They asked for a Word file, absurd, but here is my latex solution. I wrote \alttext macro. Place \alttext{alt text} at end of every tikz picture. Resulting pdf shows alt text with mouseover on figure.

I'm excited to join the editorial board of a new diamond open access journal in mathematical logic: ZML: Zeitschrift für Mathematische Logik und Grundlagen der Mathematik zml.international The open letter of the editors of ZML can be found online on the webpage.

A great pleasure to be nominated on the APA Committee on Non-Academic Careers. Looking forward to contributing back to the broader philosophical community in the next three years!

I don't speak German, and neither do my calculus students, but even so I think this is one of the best explanations of the derivative of sine and cosine I've ever seen. Also, it's a bop that won't get out of my head. #mathsky #iTeachMath www.youtube.com/watch?v=tSov...

Really reassuring that there's still a place where people enjoy talking about ideals, especially in today's society

Really great stuff, wishing more mathematicians would spend some time writing about their fields like this. Set Theory and the Analyst is another great read with similar themes: arxiv.org/abs/1801.09149

A natural (uncountable) set of reals without a perfect subset, whose measurability can be shown via forcing! mathoverflow.net/a/484096

The hero we need but don't deserve

See also the discussion in this MO thread: mathoverflow.net/a/482756 This is what makes set theory immensely appealing for me - properly mathematical pursuits inevitably run up against issues beyond the space between Theorem and QED: standards of refutation and acceptance, criteria for evidence, etc

I'll be giving a talk at the ASL-APA 2025 Spring meeting (Feb. 27-March 1, 2025), on the subtly different uses of the Church-Turing Thesis (and relatives) in actual mathematical practice.

So this is where the fun folks went