When a mathematician asks for help with a million-line Lean proof

ctjlewis · x · 2026-10-04

ctjlewis kicks off an AI-math meme: when a mathematician says "I need help running this huge Lean proof, it's millions of lines," everyone rushes to help. The setup leads into a punchline thread about how differently the community treats an AI that proves a theorem.

Related event: Mathematicians happily help each other but brutally reject AI asking for proof verification(3 posts)→

Original post →

More from Fun

Fun channel →