As of: 2026-10-30 13:42 CET. Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/ Canonical page: https://postcutoff.com/p/x-chaesemeyer-2112478250261946595/ # “An interesting specimen in the OAI dump is their proof of the Deligne - Drinfeld…” Christian Haesemeyer (@CHaesemeyer), X, 2026-10-20. Source: https://x.com/CHaesemeyer/status/2112478250261946595 ## Archived text > @retiremeplease An interesting specimen in the OAI dump is their proof of the Deligne - Drinfeld conjecture. I understand it’s now been reduced to 3 pages as well, but that’s because it works by writing down a representation that comes out of nowhere, and then you just check well defined 1/2 Archived 2026-10-29 via fxtwitter (unofficial). Counts: 167 views, 6 likes, 1 repost, 1 reply (at fetch time) ## Cited in - 2026-10-06: [Deligne–Drinfeld conjecture proved; experts simplify and reprove OpenAI's proof](https://postcutoff.com/e/2026-10-06-openai-deligne-drinfeld-conjecture-proof/)