How did an AI system discover a counterexample to the 87-year-old Jacobian conjecture, and what does this mean for the future of mathematical research?
On July 19, 2026, mathematician Levent Alpöge casually announced on X that the 87‑year‑old Jacobian conjecture is false 2 28 . He had found a counterexample with the help of Anthropic’s Claude Fable 5, a large language model 1 11 26 32 51 55 . The discovery is being called...
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