Claude ran autonomously for 11 days to produce the first end-to-end, computer-checked formal proof of Fermat's Last Theorem

Anthropic 宣布 Claude 用 11 天完成费马大定理首个端到端形式化证明

Anthropic's Claude spent 11 days translating Andrew Wiles' 1995 proof of Fermat's Last Theorem into a formal, computer-checkable version using the Lean proof assistant. It generated roughly 13 million lines of Lean code and proved about 30,300 theorems, all verified by Lean against three standard axioms. The project was led by Columbia assistant professor Tianyi Peng, used a multi-agent setup on the Prove2Me platform, and consumed around 6 billion output tokens. The full proof is public on GitHub and is over five times larger than the Mathlib library. Worth noting: this is not a new mathematical discovery—it's a large-scale, machine-checkable translation of an existing proof, completed in 11 days instead of the years originally expected.

Why it matters: Anthropic published Claude's first end-to-end formalization of Fermat's Last Theorem — 13M lines of Lean code, 30K+ theorems all verified. A landmark for formal mathematics and hard evidence of AI reasoning capability. HKR all hit, Anthropic entity bump applied. Not higher bec...