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Minus 1a5aa4f1c08b567c9107cba729de26bc87c17ab2b2f690eb45059193a1d6f587 Unification and Narrowing in Maude 2.4
Clavel, Manuel and Duran, Francisco and Eker, Steven and Escobar, Santiago and Lincoln, Patrick and anbd Jose Meseguer, Narciso Martı-Oliet and Talcott, Carolyn - 2009 - PDF

Maude is a high-performance reflective language and system supporting both equational and rewriting logic specification and programming for a wide range of applications, and has a relatively large worldwide user and open-source developer base. This paper introduces novel features of Maude 2.4 including support for unification and narrowing. Unification is supported in Core Maude, the core rewriting engine of Maude, with commands and metalevel functions for order-sorted unification modulo some frequently occurring equational axioms. Narrowing is currently supported in its Full Maude extension. We also give a brief summary of the most important features of Maude 2.4 that were not part of Maude 2.0 and earlier releases. These features include communication with external objects, a new implementation of its module algebra, and new predefined libraries. We also review some new Maude applications.