Anthropic uploads machine-verified Lean 4 proof of Fermat's Last Theorem
Chris_Armstrong · x · 2026-09-05
Per accounts circulating on X, Anthropic has uploaded a Lean 4 formalization of Fermat's Last Theorem — translating one of mathematics' most legendary theorems into a fully machine-checkable proof. Details are described in Anthropic's official write-up.
Related event: Claude Produces First Formalized Proof of Fermat's Last Theorem in 11 Days(52 posts)→
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