Sorries Are Not the Hard Part: An Expert-Review Case Study of a Semi-Autonomous Formalization

arXiv:2606.13925v1 Announce Type: new Abstract: Large language models can often close proof gaps in interactive theorem provers, but a verified theorem is not the same thing as a reusable library contribution. We study this distinction through a detailed case study: a semi-autonomous formalization of Grothendieck's vanishing theorem. The initial version compiles with no sorries, but an expert review found serious problems in definitions, theorem generality, file organization, and the API. We then ran a review-driven refactor and compression process and obtained a second expert review. The befo
The proliferation of large language models (LLMs) and interactive theorem provers is creating a need to assess the reliability and reusability of AI-generated formalizations in complex mathematical domains.
This case study highlights the gap between AI's ability to 'solve' problems and its capacity to produce human-reusable, robust system contributions, which is critical for future AI-driven scientific and engineering advancements.
The focus shifts from merely achieving a verified proof via AI to the stringent requirements of expert review and iterative refinement for truly 'useful' AI contributions, especially in high-stakes fields.
- · Interactive theorem prover developers
- · AI safety researchers
- · Software engineering best practices for AI
- · Over-optimistic AI developers
- · Projects relying solely on AI proof generation without human oversight
AI-generated formalizations require significant human expert review and refinement before becoming reliable library contributions.
This will drive the development of better interfaces and feedback loops between human experts and AI systems for complex problem-solving.
It will prompt a re-evaluation of how 'progress' in AI is measured, emphasizing utility and robustness over mere achievement of a task.
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Read at arXiv cs.AI