Claude Produced the First Computer-Checked Proof of Fermat's Last Theorem — 13 Million Lines of Lean, 11 Days, Largely Autonomous
Anthropic's Claude reportedly generated a machine-verifiable formalization of Fermat's Last Theorem in Lean, marking a shift from AI that writes proofs to AI that produces proofs a computer can check line by line.
Anthropic's latest Claude release reportedly formalized Fermat's Last Theorem in Lean, producing what multiple accounts describe as the first computer-checked proof of the 358-year-old problem. The numbers, if they hold up, are staggering: 13 million lines of Lean, roughly 29,500 intermediate theorems, generated over 11 days and largely autonomously, according to @DanielZambrini and echoed by @FadyEid.
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