Autoformalizing Euclidean Geometry

• URL: http://arxiv.org/abs/2405.17216v1
• Date: Mon, 27 May 2024 14:35:10 GMT
• Title: Autoformalizing Euclidean Geometry
• Authors: Logan Murphy, Kaiyu Yang, Jialiang Sun, Zhaoyu Li, Anima Anandkumar, Xujie Si,
• Abstract summary: We introduce a neuro-symbolic framework for autoformalizing Euclidean geometry. One challenge is that informal proofs rely on diagrams, leaving gaps in texts that are hard to formalize. We provide automatic semantic evaluation for autoformalized theorem statements.
• Score: 74.72212706513318
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Autoformalization involves automatically translating informal math into formal theorems and proofs that are machine-verifiable. Euclidean geometry provides an interesting and controllable domain for studying autoformalization. In this paper, we introduce a neuro-symbolic framework for autoformalizing Euclidean geometry, which combines domain knowledge, SMT solvers, and large language models (LLMs). One challenge in Euclidean geometry is that informal proofs rely on diagrams, leaving gaps in texts that are hard to formalize. To address this issue, we use theorem provers to fill in such diagrammatic information automatically, so that the LLM only needs to autoformalize the explicit textual steps, making it easier for the model. We also provide automatic semantic evaluation for autoformalized theorem statements. We construct LeanEuclid, an autoformalization benchmark consisting of problems from Euclid's Elements and the UniGeo dataset formalized in the Lean proof assistant. Experiments with GPT-4 and GPT-4V show the capability and limitations of state-of-the-art LLMs on autoformalizing geometry problems. The data and code are available at https://github.com/loganrjmurphy/LeanEuclid.

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