Fermat's Last Theorem Formalized in Lean 4, in a Repo Under Anthropic's GitHub Org
aaraujo002 · hn · 2026-09-05
A top Hacker News thread points to anthropics/fermats-last-theorem, a repo where Fermat's Last Theorem has been fully formalized in Lean 4.
- The project sits under Anthropic's GitHub org, aligning with recent discussions of AI-assisted proof systems (e.g. 'Aster') that generate Lean statements and verify them with the Lean compiler
- Complete formalization of Fermat's Last Theorem has long been a landmark challenge for formal mathematics
- The HN discussion touches on how such systems assemble long proofs piece by piece, checking each chunk before compilation
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