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Non-Disjoint Combination with Forward-Closed Theories

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Serdar Erbatur
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Andrew M. Marshall
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We consider the class of forward-closed theories defined as the equational theories generated by forward-closed convergent rewrite systems. In this particular class of syntactic theories, the unification problem can be solved thanks to a mutation-based unification algorithm. This is shown by reusing an approach based on Basic Syntactic Mutation originally developed for equational theories saturated by paramodulation. Then this mutation-based algorithm is applied in a new combination algorithm that solves the unification problem in some non-disjoint extensions of forward-closed theories.
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hal-01590782 , version 1 (20-09-2017)


  • HAL Id : hal-01590782 , version 1


Serdar Erbatur, Andrew M. Marshall, Christophe Ringeissen. Non-Disjoint Combination with Forward-Closed Theories. 31th International Workshop on Unification, UNIF 2017, Adrià Gascón; Christopher Lynch, Sep 2017, Oxford, United Kingdom. ⟨hal-01590782⟩
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