SMRTR Science & EngineeringAug 20, 2025Hacker News

Lean proof of Fermat's Last Theorem

SMRTR summary

A formal proof of Fermat's Last Theorem has been completed using the Lean theorem prover. This computerized verification ensures complete mathematical certainty by checking every logical step, unlike previous proofs that spanned hundreds of pages. The effort, based on Peter Scholze's condensed mathematics approach and Wiles' original proof, was translated into formal language by multiple mathematicians. This achievement showcases how modern technology can validate complex mathematical arguments with unprecedented rigor.

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