Author

Ziyu Wang

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Preprint Aug 2026

FaithSieve: Fine-Grained Evaluation of Math Proofs with Faithful Formal Evidence

FaithSieve is introduced, a Lean-assisted framework for fine-grained evaluation of natural-language mathematical proofs that demonstrates that decomposing proofs into fine-grained units and grounding them with faithful formal evidence significantly improves reliable evaluation of natural-language reasoning.

Zi-Yu Wang, Qi-Yu Dai, Yi-Shan Wu et al. · 0 citations