Lean Formalization of Harder‑Narasimhan Theory Enhances Proofs

The Harder‑Narasimhan theory has been fully formalized in the Lean 4 proof assistant, with machine‑checked proofs of the canonical filtration released on 23 Sep 2025. Read more: getnews.me/lean-formalization-of-ha... #hardernarasimhan #lean4 #mathlib