Hackernews posts about Lean

Lean is a proof assistant software that helps mathematicians and computer scientists formalize and verify mathematical proofs using a rigorous and automated process.

Related: Coq  
  1. Are We Stuck with Lean? (mathoverflow.net)
  2. LeanScreen: Lean Verification (www.millenniumresearch.ai)
  3. A Plea for Lean Software (Niklaus Wirth) (liam-on-linux.dreamwidth.org)