Proceedings

A Complete Unification Algorithm for Associative-Commutative Functions

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Proceedings of the Fourth International Joint Conference on Artificial Intelligence. Mathematical and Theoretical Aspects of A.I. Pages 71-75.

Abstract

An important component of mechanical theorem provinc systems are unification algorithms which find most general sul!stitutions which, when applied to two expresssions, make them equivalent. Functions which are associat i ve and commutative (such as the arithmetic addition and multiplication functions) are often the subject of mechanical theorem proving . An algorithm which unifies terms whose function is associative and commutative is presented here. The algorithm eliminates the need for axiomatizing the usoeiativity and commutativity properties and returns 1 complete set of unifiers without recourse to the · indefinite generation of variants and instances of the terms beinc unified required by previous solutions to the problem.

Mark E. Stickel. 1975. A Complete Unification Algorithm for Associative-Commutative Functions. In Proceedings of the Fourth International Joint Conference on Artificial Intelligence, IJCAI-75. IJCAI, 71–75. https://ijcai.org/proceedings/1975/12
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