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Automated Theorem Proving for Metamath

Authors Mario Carneiro , Chad E. Brown, Josef Urban



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Author Details

Mario Carneiro
  • Carnegie Mellon University, Pittsburgh, PA, USA
Chad E. Brown
  • Czech Technical University in Prague, Czech Republic
Josef Urban
  • Czech Technical University in Prague, Czech Republic

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Mario Carneiro, Chad E. Brown, and Josef Urban. Automated Theorem Proving for Metamath. In 14th International Conference on Interactive Theorem Proving (ITP 2023). Leibniz International Proceedings in Informatics (LIPIcs), Volume 268, pp. 9:1-9:19, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2023)
https://doi.org/10.4230/LIPIcs.ITP.2023.9

Abstract

Metamath is a proof assistant that keeps surprising outsiders by its combination of a very minimalist design with a large library of advanced results, ranking high on the Freek Wiedijk’s 100 list. In this work, we develop several translations of the Metamath logic and its large set-theoretical library into higher-order and first-order TPTP formats for automated theorem provers (ATPs). We show that state-of-the-art ATPs can prove 68% of the Metamath problems automatically when using the premises that were used in the human-written Metamath proofs. Finally, we add proof reconstruction and premise selection methods and combine the components into the first hammer system for Metamath.

Subject Classification

ACM Subject Classification
  • Theory of computation → Automated reasoning
  • Theory of computation → Higher order logic
  • Theory of computation → Logic and verification
Keywords
  • Metamath
  • Automated theorem proving
  • Interactive theorem proving
  • Formal proof assistants
  • proof discovery

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