GPT 5.6 Successfully Formalizes Complex Math Proofs Without Internal Lean Code
Sauers_ · x · 2026-08-05
User testing reveals that GPT 5.6 Sol successfully formalized the Kun and Kun-Thom work required to prove nonsofic existence, including necessary repairs.
Notably, the model achieved this complex mathematical derivation without access to OpenAI's internal Lean codebase, demonstrating robust independent theorem-proving capabilities.
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