Zulip Chat Archive
Stream: general
Topic: Banach-Tarski complete
Arthur Tilley (Jan 04 2026 at 22:02):
Hi all,
I'm happy to announce that the Banach-Tarski project is now, sorry-free, linted, and has a base level of comments/documentation.
The proofs in this project are still certainly pretty verbose compared to what I see in Mathlib, so I'll be coming back to this project in the future to tighten things up as I learn more about Lean.
If anyone has and suggestions (ie. about what sections could use more comments / explanation) please do reach out.
Thank so much to all the folks that took time to answer questions and offer suggestions. (Also a special thanks to @Tanner Duve to being available to answer my questions back when I was working through the natural numbers game.)
sincerely,
Arthur
Tanner Duve (Jan 04 2026 at 22:39):
Nice work man
Johan Commelin (Jan 05 2026 at 08:18):
Does that mean that you can now cut the project into 5 pieces and assemble them again into two identical copies of the project?
Last updated: Feb 28 2026 at 14:05 UTC