TL;DR Fermat's Last Theorem, unsolved for over 350 years, has now been fully formalized into a computer-verified proof by Claude in just 11 days. Dozens of AI agents collaborated to build a massive proof checked by the Lean proof assistant. Title: Formalizing Fermat's Last Theorem URL: Key points 🧮 29,500 intermediate theorems proved (30,300 total) 📄 13 million lines of Lean code generated -- 5x the size of Mathlib 🤝 Dozens of Claude agents collaborated, each taking on a piece of the proof 🧩 The Prove2Me platform managed theorem dependencies and project state ⚙️ Only Lean's three standard axioms were used 💬 Mathematician Kevin Buzzard independently confirmed the proof's validity 🔁 A 3-person team formalized the Three Primes Theorem in just 3 days using the same platform This looks like real evidence that AI-driven formalization can cut down the years-long human review burden that complex proofs usually require. #Lean# #FormalVerification#