Correction: Theorem Formalized 8 Years Ago in Lean
littmath · x · 2026-08-31
Responding to a claim about spending $2,000 to formalize π₃(S²) = Z, a commenter noted that this theorem was already formalized in a Lean2 repository 8 years ago. The current project's difficulty likely lies in setting up Homotopy Type Theory foundations.
Related event: AI Formalizes Spherical Homotopy Theorem for $2,000, Sparks Debate(2 posts)→
More from Research
- MagicBeanStalk paper: recursive synthesis of hard problems boosts gpt-oss-120b by 8.6 points on 8 math benchmarks — hyunw_kim · 2026-10-16
- CERN and Mistral partner to train first foundation model for collider physics on billions of simulated collisions — xiaosun86 · 2026-10-16
- Researchers find models actively shaping their future selves for the first time — Confident_Salt_8108 · 2026-10-16
- 90% of American working hours fall outside what AI benchmarks cover well, study estimates — robseamans · 2026-10-16
- O(n) algorithm found for optimal multinomial Kelly wagering, beating naive O(n log n) — alexbilz · 2026-10-16
- "We crossed a line in April without realizing it": survey on self-modifying AI systems — Jealous-Two-4436 · 2026-10-16