LeanPRM uses Lean proof assistant for step-level supervision
October 12, 2026
LeanPRM automates the creation of step-level correctness labels for natural-language mathematical proofs by pairing them with formal Lean proofs. This framework solves the bottleneck of obtaining expensive human annotations or lacking ground-truth steps in open-ended reasoning tasks.
HOW THIS AFFECTS YOU
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builderThis provides a more scalable way to train verifiers for mathematical and logical reasoning agents.
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researcherYou can leverage formal verification tools to scale process supervision for reasoning models.