What tactic will prove the most mathlib lemmas at the end of 2026?
Mini
7
Ṁ702
2027
2%
simp
38%
aesop
2%
rw_search
1.7%
sorry
4%
duper
52%
Other

Sometime around the resolution date, I will write a script that samples random tactic-mode lemmas from mathlib, and replaces the proof of those lemmas with an invocation of a single tactic. This market resolves to whichever tactic of the ones provided as answers proves the biggest fraction of lemmas.

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Depending on the setup exact? will get a 100% success rate. How will you prevent that?

By "prove", is it ok if there are warnings? Because I know of a tactic that has a 100% success rate 😉

@tfae screw the innuendo, I'm going all in on sorry

@tfae Lol.

But no. Feel free to ask more questions about what counts as proof, but sorry does not count.

@BoltonBailey it was still worth it for the meme