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A partial digestion of the HRT counterexample

Hacker News Top · 2026-08-09 Cached

Terry Tao discusses a recent counterexample to the Heil-Ramanathan-Topiwala (HRT) conjecture in harmonic analysis, explaining the structure of time-frequency shifts and the conjecture's status.

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#counterexample

The Maxwell Conjecture Is False (GPT 5.6 Sol)

Hacker News Top · 2026-07-31 Cached

A new arXiv paper disproves Maxwell's 1873 conjecture by presenting a configuration of five point charges with at least 24 non-degenerate critical points, exceeding the conjectured bound. The construction was suggested by OpenAI's GPT-5.6 Sol, with the authors verifying the mathematics.

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#counterexample

Brute intelligence (7 minute read)

TLDR AI · 2026-07-27 Cached

The article discusses how AI models like Anthropic's Fable and ChatGPT have been used by mathematicians to disprove famous conjectures, suggesting a new paradigm of brute intelligence in fields with verifiable answers.

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#counterexample

A digestion of the Jacobian conjecture counterexample

Hacker News Top · 2026-07-21 Cached

Terry Tao explains a counterexample to the Jacobian conjecture in three dimensions, discovered with the help of Fable AI.

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#counterexample

A complete breakdown of the math behind Fable's Jacobian disproof

Reddit r/ArtificialInteligence · 2026-07-21 Cached

Number theorists discovered a counterexample to the Jacobian conjecture in three-dimensional space using the AI model Fabel. After 87 years, the conjecture was disproved, but the planar version remains open.

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#counterexample

Human mathematicians are being outcounterexampled

Hacker News Top · 2026-07-20 Cached

AI systems, including ChatGPT and OpenAI's Sol, have disproved and fully formalized the Erdős Unit Distance conjecture, marking a milestone in AI-assisted mathematics. The article discusses the process and implications for the future of mathematical proof verification.

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#counterexample

@jerryjliu0: This is awesome. Instead of doing work this morning, I spent some time brushing up on math to provide a handwavy overvi…

X AI KOLs Following · 2026-07-20 Cached

An AI model named Fable discovered a counterexample to the Jacobian conjecture, a long-standing open problem in mathematics, by finding a polynomial function that meets the special conditions but is not invertible.

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#counterexample

Claude found a counterexample to the Jacobian Conjecture

Lobsters Hottest · 2026-07-20 Cached

Claude, an AI model, reportedly found a counterexample to the long-standing Jacobian Conjecture, verified by multiple LLMs, sparking debate about AI's role in mathematical discovery.

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Claude Fable produced a counterexample to the Jacobian Conjecture

Hacker News Top · 2026-07-20 Cached

A tweet claims that the AI model Claude Fable produced a counterexample to the Jacobian Conjecture, providing an explicit polynomial map that is not injective despite having constant nonzero Jacobian determinant.

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#counterexample

@LiorOnAI: This is a bigger deal than it sounds. A mathematician gave Grok 4.5 an open research problem but instead of just explai…

X AI KOLs Following · 2026-07-10 Cached

A mathematician reports that Grok 4.5 discovered a novel counterexample to hypercontractivity on the 4-sphere, potentially marking the first instance of original mathematical research by an AI, pending peer review.

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#counterexample

@RayFernando1337: Help needed: math expert to verify the problem is solved.

X AI KOLs Timeline · 2026-06-26 Cached

Kyle Kabasares claims to have used OpenAI's ChatGPT-5.5 Pro to generate a candidate counterexample to an open problem from Don Knuth's The Art of Computer Programming, and requests verification.

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