Featured in Domain Arrivals · 2026-08-14
Theorem.chat Makes AI Prove It
An AI-assisted system that attacks mathematical claims with multiple models and formalises the result in Lean 4.
Why it surfacedThe site gives AI a genuinely unforgiving referee: Lean’s kernel either accepts the formal proof or it does not. Its unusually clear promise—showing the exact goal left behind when an argument fails—turns confident machine reasoning into something a mathematician can inspect.
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The Largest Cat Has No Number
August 14’s newborn domains include an unnumbered giant among thirteen catalogued glossy cats, a shareable Visual Snow Syndrome simulator, two independent Colombian relief directories, and a snail farm with races, courtship, and its own Gazette.
This is one of 1,000 discoveries in the 2026-08-14 Domain Arrivals issue.