A Critical Look at Lean 4: Examining Formal Proof's Core Tool
amanverasia · hn · 2026-10-12
A LessWrong long-form post offers a critical examination of Lean 4, the language and toolchain at the heart of the formal mathematics and AI-for-math wave. The author analyzes its limitations and practical pain points from hands-on experience—a useful counterweight for anyone following AI-assisted theorem proving (e.g., AlphaProof-style systems).
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