Largest Math Proof Ever Gets Fully Lean-Formalized: 15,000-Page Classification of Finite Simple Groups
PlisSergey · x · 2026-10-28
Axiom announced a complete Lean auto-formalization of the Classification of Finite Simple Groups — the largest math proof in human history, spanning 15,000 pages built by over 100 mathematicians across generations, dubbed the 'periodic table of symmetry.'
A mathematician amplifying the news argues that mathematicians who don't autoformalize will end up like programmers insisting on hand-writing every line. After 5 hours learning to read Lean and set up an autoformalization environment, all of his pre-AI-era work is now machine-verified: small errors were caught automatically, vague ideas can be tested without wasted effort, and others' complicated new results can be trusted without waiting for peer review.
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