SMRTR Science & EngineeringApr 21, 2026Science News

The Proof in the Code traces efforts to digitally verify mathematical truths

SMRTR summary

A small group of mathematicians and developers transformed Lean, a 2013 code-checking tool, into a powerful math proof verifier used by tens of thousands worldwide. By 2025, AI researchers were using Lean's math libraries to train systems like Google DeepMind's AlphaProof, which scored at silver-medal level at the 2024 International Mathematical Olympiad.

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