Anthropic 'formalizes' Fermat's Last Theorem like never before using Claude — but it still took 11 days to write out
THE SO WHAT
Thirteen million lines of Lean in 11 days is a proof-of-concept that LLMs can brute-force formalization, but also a reminder that verification-scale, not cleverness, is the constraint. If your domain has a formal language — contracts, specs, compliance rules — start testing AI for translation and checking, not just summarization.
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