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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Term Rewriting in Logics of Partial Functions
verfasst von : Matthias Schmalz
Erschienen in: Formal Methods and Software Engineering
Verlag: Springer Berlin Heidelberg
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We devise a theoretical foundation of
directed rewriting
, a term rewriting strategy for logics of partial functions, inspired by term rewriting in the Rodin platform. We prove that directed rewriting is sound and show how to supply new rewrite rules in a soundness preserving fashion. In the context of Rodin, we show that directed rewriting makes a significant number of conditional rewrite rules unconditional. Our work not only allows us to point out a number of concrete ways of improving directed rewriting in Rodin, but also has applications in other logics of partial functions. Additionally, we give a semantics for the logic of Event-B.