From cc440e2674697afc967e081cf91e03f149333502 Mon Sep 17 00:00:00 2001 From: Richard Qin Date: Thu, 2 Apr 2026 04:10:53 +0800 Subject: Initial commit: Build project architecture, define interfaces, write documentation, with the help of Claude --- proofsearch/include/atp/infer/unification.h | 40 +++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 proofsearch/include/atp/infer/unification.h (limited to 'proofsearch/include/atp/infer/unification.h') diff --git a/proofsearch/include/atp/infer/unification.h b/proofsearch/include/atp/infer/unification.h new file mode 100644 index 0000000..7d91aaf --- /dev/null +++ b/proofsearch/include/atp/infer/unification.h @@ -0,0 +1,40 @@ +/* + * richard-atp-engine: A saturation-based automated theorem prover for first-order logic. + * Copyright (C) 2026 Richard Qin + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + + +#pragma once + +/// @file unification.h +/// @brief Most General Unifier (MGU) computation. + +#include "atp/core/term_bank.h" +#include "atp/infer/substitution.h" + +namespace atp { + +/// Configuration for the unification algorithm. +struct UnificationConfig { + bool enable_occurs_check = false; ///< Set true for sound but slower unification +}; + +/// Attempt to unify two terms, producing a most general unifier. +/// @return true if unification succeeds, with the MGU in `subst`. +bool unify(const TermBank& bank, TermId t1, TermId t2, Substitution& subst, + const UnificationConfig& config = {}); + +} // namespace atp -- cgit v1.2.3