AI Engineering

Sep 5, 2026 · Artificial Intelligence

Claude Formally Proves Fermat's Last Theorem in 11 Days with 13M Lines of Lean Code

Anthropic's Claude AI completed the first full formal verification of Fermat's Last Theorem in 11 days, generating over 13 million lines of Lean code and 29,500 intermediate theorems using the Prove2Me platform, with independent verification by the nanoda kernel, signaling a shift in mathematical proof validation.