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About this paper

QuocViet Pham, Elvir Karimov, Andrey Galichin, Ivan Oseledets

TheoremBench provides a new Lean4 benchmark for evaluating large language models on structured formal mathematics, demonstrating that stronger models like DeepSeek-Prover-V2-7B significantly benefit from explicit contextual premises while generally producing verbose proofs.

Key insights

  • Explicitly providing structural premises significantly reduces the difficulty of formal theorem proving for stronger LLMs, indicating the importance of context-aware reasoning in formal mathematics.
  • Current LLM provers exhibit qualitative differences in navigating structured proofs and completing entire theorem groups, suggesting varied abilities in handling hierarchical mathematical knowledge.
  • Models frequently generate verbose proofs that are substantially longer than human-written references, pointing to a reliance on extensive tactic exploration over concise proof planning and a bias towards easier subtheorems.

Summary by alphaXiv.

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