Claude formalizes Fermat's Last Theorem proof in 11 days with 13M lines of code
sebpaquet · x · 2026-09-06
- Mathematician Kevin Buzzard had a 5-year grant to formalize the proof of Fermat's Last Theorem; Claude completed it in 11 days, producing 13 million lines of formalized code.
- That marks a 5-order-of-magnitude leap in autoformalized code over the past 18 months; another 5 orders in the next 18 months would imply 1 trillion lines.
- Seen as a landmark advance for AI on hard mathematical formalization tasks.
Related event: Claude Formalizes Fermat's Last Theorem in 13 Million Lines of Lean(50 posts)→
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