Algebraic laws for nondeterminism and concurrency
Journal of the ACM (JACM)
Priorities in process algebras
Information and Computation - Selections from 1988 IEEE symposium on logic in computer science
A new strategy for proving &ohgr;-completeness applied to process algebra
CONCUR '90 Proceedings on Theories of concurrency : unification and extension: unification and extension
Journal of the ACM (JACM)
Information and Computation
Communication and Concurrency
The Definition of Standard ML
Proceedings of the IFIP WG6.1 Fifth International Conference on Protocol Specification, Testing and Verification V
The Importance of the Left Merge Operator in Process Algebras
ICALP '90 Proceedings of the 17th International Colloquium on Automata, Languages and Programming
The Linear Time-Branching Time Spectrum (Extended Abstract)
CONCUR '90 Proceedings of the Theories of Concurrency: Unification and Extension
On the Expressive Power of CCS
Proceedings of the 15th Conference on Foundations of Software Technology and Theoretical Computer Science
Priorities for Modeling and Verifying Distributed Systems
TACAs '96 Proceedings of the Second International Workshop on Tools and Algorithms for Construction and Analysis of Systems
CCS with Hennessy's merge has no finite-equational axiomatization
Theoretical Computer Science - Expressiveness in concurrency
Bisimilarity is not finitely based over BPA with interrupt
Theoretical Computer Science - Algebra and coalgebra in computer science
Information Processing Letters
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This paper studies the equational theory of bisimulation equivalence over the process algebra BCCSP extended with the priority operator of Baeten, Bergstra and Klop. We prove that, in the presence of an infinite set of actions, bisimulation equivalence has no finite, sound, ground-complete equational axiomatisation over that language. This negative result applies even if the syntax is extended with an arbitrary collection of auxiliary operators, and motivates the study of axiomatisations using equations with action predicates as conditions. In the presence of an infinite set of actions, it is shown that, in general, bisimulation equivalence has no finite, sound, ground-complete axiomatisation consisting of equations with action predicates as conditions over the language studied in this paper. Finally, sufficient conditions on the priority structure over actions are identified that lead to a finite, ground-complete axiomatisation of bisimulation equivalence using equations with action predicates as conditions.