As AI Chugs Lean Proofs, Mathematicians Are About to Feel the Pain

ctjlewis · x · 2026-09-23

The author half-jokingly predicts mathematicians are about to have a rough time as AI systems start chugging lemmas and Lean proofs at scale.

With self-deprecating humor, he says he has experienced that pain a thousandfold and offers a shoulder to cry on — a nod to how automation has already disrupted his own field. The post captures a growing anxiety among mathematicians as formal proof tools merge with AI.

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