arXiv:2611.05924 · v1

How to prove equations using diagrams: A categorical and operational semantics for e-graphs

首次提交 2026-11-04 12:15

版本更新 2026-11-04 12:15

雷达观测 2026-11-05 10:08

摘要

E-graphs are a powerful algorithmic technique for automated equational reasoning but have resisted a conceptual understanding independent of issues of presentation and implementation. We propose an operational semantics for e-graphs based on the fundamental category-theoretic concepts of diagrams, limits, and initial functors. We illustrate the formalism through numerous example calculations and establish its soundness and completeness. Technical prerequisites are kept to a minimum in the main text; less standard elements of the mathematical theory are developed in two appendices.