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Congruence from the operator’s point of view
Acta Informatica ( IF 1.042 ) Pub Date : 2019-12-02 , DOI: 10.1007/s00236-019-00355-5
Maciej Gazda, Wan Fokkink, Vittorio Massaro

Abstract A basic sanity property of a process semantics is that it constitutes a congruence with respect to standard process operators. This issue has been traditionally addressed by developing, for a specific process semantics, a syntactic format for operational semantics specifications. We suggest a novel, orthogonal approach, which focuses on a specific process operator and determines a class of congruence relations for this operator. To this end, we impose syntactic restrictions on Hennessy–Milner logic, so that a process semantics whose modal characterization satisfies those criteria is guaranteed to be a congruence with respect to the operator in question. We investigate alternative composition, action prefix, projection, encapsulation, renaming, and parallel composition with communication, in the context of both concrete and weak process semantics.
更新日期:2020-01-04

 

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