Philip Zucker • 1/26/2026

Term Ordering Etudes: Ground Lexicographic Path Ordering

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This technical article delves into term orderings, specifically Ground Lexicographic Path Ordering (LPO), used in term rewriting systems and theorem proving. It discusses the conceptual challenges of ordering terms with variables and presents a simplified, ground (variable-free) implementation in Python. The author shares code for a term datatype and the LPO comparison logic, aiming to build intuition through examples and property testing.

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#Term Rewriting #Lexicographic Path Ordering #Ground Terms
Term Ordering Etudes: Ground Lexicographic Path Ordering

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