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WatchingNewsWatching0 independent reports14

Claude Fable Claims to Have Produced a Counterexample to the Jacobian Conjecture

First seen · 7/20/2026, 10:51 AMLatest activity · 7/20/2026, 10:51 AM

A widely discussed Hacker News item relays a claim that “Claude Fable” produced a counterexample to the Jacobian Conjecture, a longstanding open problem concerning polynomial maps in algebra and geometry. The supplied material points to a social-media post and a Hacker News discussion with 803 points and 515 comments, but provides no mathematical construction, proof, independent verification, peer-reviewed paper, or expert assessment. The claim is therefore highly consequential if true, yet currently remains unverified.

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  1. CommunityHacker News7/20, 10:51 AMnot independentcommunity 803 pts / 515 commentsRepresentative
    Claude Fable Claims to Have Produced a Counterexample to the Jacobian Conjecture