LeanPRM Trains Natural-Language Math Proof Verifiers on Lean-Generated Synthetic Data
Pavel_Izmailov · x · 2026-11-07
New paper LeanPRM introduces "Lean-Grounded Process Supervision": it uses Lean to generate synthetic data and trains verifiers that spot mistakes in natural-language math proofs. The verifiers read only natural language and beat the same model trained on human-labeled data on 4 of 5 benchmarks. Paper, project page, data and code are all released.
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