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News/Characterizing Paraphrase-Induced Failures in Lean 4 Autoformalization
arxiv
PublishedMay 19, 2026 at 4:00 AM

Characterizing Paraphrase-Induced Failures in Lean 4 Autoformalization

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arXiv:2604.23135v2 Announce Type: replace Abstract: Lean 4 autoformalization has become increasingly popular in recent years, with frontier language models and open-weight autoformalizers now producing valid formalizations of mathematical theorems. However, these evaluations often rely on single can

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