Trend AnalysisMathematics & Statistics

Goedel-Prover and the LLM Revolution in Automated Theorem Proving

LLM-based theorem provers are achieving results that would have been considered impossible two years ago. Goedel-Prover (87 citations) sets a new state-of-the-art for open-source formal proof generation, while multi-agent systems extend theorem proving to quantum physicsโ€”raising questions about the nature of mathematical understanding.

By Sean K.S. Shin
This blog summarizes research trends based on published paper abstracts. Specific numbers or findings may contain inaccuracies. For scholarly rigor, always consult the original papers cited in each post.

Automated theorem provingโ€”having computers generate formal mathematical proofsโ€”has been a goal of AI since the 1950s. For decades, progress was slow: formal proofs require precise logical reasoning that neural networks were not designed for. The advent of large language models, trained on mathematical text and code, has changed the landscape dramatically. Systems like Goedel-Prover and Seed-Prover can now generate formal proofs in Lean (a proof assistant used by mathematicians) for problems ranging from undergraduate exercises to competition-level challenges.

The Research Landscape

Goedel-Prover: Open-Source SOTA

Lin and Lyu (2025), with 87 citations, introduce Goedel-Proverโ€”an open-source language model that achieves state-of-the-art performance in automated formal proof generation. The key innovation addresses a fundamental bottleneck: the scarcity of formalized mathematical statements and proofs available for training.

Goedel-Prover solves this through a two-stage approach:

  • Statement formalization: An LLM translates informal mathematical statements (from textbooks, competitions, and research papers) into formal Lean statements, massively expanding the training data.
  • Proof generation: A second LLM, trained on the expanded dataset, generates formal proofs for the formalized statements.
  • The system achieves strong results on standard benchmarks: a 57.6% success rate (Pass@32) on MiniF2F (a challenging benchmark of competition-level mathematics), surpassing the previous leader DeepSeek-Prover-V1.5-RL by 7.6 percentage points. With additional RL training (including DPO), the success rate exceeds 60%. On PutnamBench (based on the William Lowell Putnam Mathematical Competition), Goedel-Prover solves 7 problems (Pass@512), ranking first on the leaderboard. Additionally, it provides formal proofs for 29,700 problems in Lean Workbook, nearly doubling the 15,700 solved by prior provers.

    Seed-Prover: Reasoning Depth

    Chen and Huang (2025), with 55 citations, take a complementary approach: rather than expanding training data, they improve the reasoning process itself. Seed-Prover uses reinforcement learning to develop long chain-of-thought reasoningโ€”extended sequences of intermediate steps that build toward the final proof.

    The insight is that formal theorem proving benefits from the same deep reasoning strategies that have improved LLM performance in mathematics and science (as demonstrated by DeepSeek R1 and OpenAI o1). By training the model to generate detailed proof sketches before attempting formal proof steps, Seed-Prover achieves higher success rates on difficult problems that require multi-step reasoning.

    Human-AI Collaboration in Proving

    Ospanov and Yousefzadeh (2025), with 11 citations, propose APOLLOโ€”a system that combines LLM proof generation with Lean's verification capabilities in a collaborative loop. Rather than generating complete proofs in one pass, APOLLO iteratively generates proof attempts, receives feedback from the Lean proof checker, and refines its approach based on the feedback.

    This interactive approach achieves higher proof rates than single-pass generation because it can recover from mistakesโ€”a pattern familiar from human mathematical practice, where proofs are rarely correct on the first attempt.

    Multi-Domain Proving

    Del Tredici and Breen (2025), with 4 citations, extend theorem proving beyond pure mathematics into quantum physics. Their system, Ax-Prover, is a multi-agent framework where different agents specialize in different aspects of the proof process (formalization, lemma generation, proof search). The system can prove theorems involving quantum mechanics formalismโ€”a domain with distinctive mathematical structures (Hilbert spaces, operators, bra-ket notation) that generic theorem provers handle poorly.

    Critical Analysis: Claims and Evidence

    <
    ClaimEvidenceVerdict
    LLMs can generate formal proofs at competition levelGoedel-Prover: 57.6% on MiniF2F (Pass@32), 7/644 (~1.1%) on PutnamBench (Pass@512)โœ… Supported โ€” 87 citations; independently verified results
    Deep reasoning (long chain-of-thought) improves theorem provingSeed-Prover's RL-trained reasoning approachโœ… Supported โ€” 55 citations
    Interactive proof generation outperforms single-pass generationAPOLLO's iterative approachโœ… Supported โ€” higher proof rates on difficult problems
    LLM theorem proving extends to quantum physicsAx-Prover's cross-domain demonstrationsโš ๏ธ Uncertain โ€” demonstrated on selected problems; generality untested

    Open Questions

  • Understanding vs. pattern matching: Do LLM theorem provers "understand" mathematics, or do they pattern-match on proof structures? The philosophical question matters less than the practical one, but both are interesting.
  • Research-level mathematics: Current systems handle competition problems and textbook exercises. Can they contribute to research-level mathematicsโ€”proving novel theorems that humans have not yet proved?
  • Verification trust: Formal proofs generated by LLMs are verified by proof assistants (Lean, Coq). But do mathematicians trust and learn from these proofs?
  • Training data limits: Goedel-Prover's approach of translating informal mathematics into formal statements depends on the quality of the translation. Errors in formalization propagate to the proofs.
  • What This Means for Your Research

    For mathematicians, LLM theorem provers are becoming practical research toolsโ€”not for replacing mathematical reasoning but for automating tedious proof steps and exploring proof strategies. For AI researchers, theorem proving is one of the cleanest benchmarks for reasoning capabilityโ€”with objective verification through proof checkers.

    Explore related work through ORAA ResearchBrain.

    References (4)

    [1] Lin, Y., Tang, S., & Lyu, B. (2025). Goedel-Prover: A Frontier Model for Open-Source Automated Theorem Proving. arXiv:2502.07640.
    [2] Chen, L., Gu, J., & Huang, L. (2025). Seed-Prover: Deep and Broad Reasoning for Automated Theorem Proving. arXiv:2507.23726.
    [3] Ospanov, A., Farnia, F., & Yousefzadeh, R. (2025). APOLLO: Automated LLM and Lean Collaboration for Advanced Formal Reasoning. arXiv:2505.05758.
    [4] Del Tredici, M., McCarran, J., & Breen, B. (2025). Ax-Prover: A Deep Reasoning Agentic Framework for Theorem Proving in Mathematics and Quantum Physics. arXiv:2510.12787.

    Explore this topic deeper

    Search 290M+ papers, detect research gaps, and find what hasn't been studied yet.

    Click to remove unwanted keywords

    Search 7 keywords โ†’