The Enormous Theorem — classification of finite simple groups — has been fully formalized

IgorCarron · x · 2026-10-27

Vasily Ilin announced that the Enormous Theorem — the compilation of the classification of finite simple groups, one of the largest proofs in mathematics spanning thousands of pages — has been fully formalized. Igor Carron amplified the news, calling it enormous. The milestone is significant for interactive theorem proving (Lean ecosystem) and AI-assisted mathematics.

Related event: Axiom Formalizes 15,000-Page Classification of Finite Simple Groups in Lean in 24 Days(11 posts)→

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