Algebraic theories for name-passing calculi

  • Joachim Parrow
  • Davide Sangiorgi
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 803)


In a theory of processes the names are atomic data items which can be exchanged and tested for identity, but which admit no other functions or predicates. A well-known example of a calculus for name-passing is the π-calculus, where names additionally are used as communication ports. We provide complete axiomatisations of late and early bisimulation equivalences in such calculi. Since neither of the equivalences is a congruence we also axiomatise the corresponding largest congruences. We consider a few variations of the signature of the language; among these, a calculus of deterministic processes which is reminiscent of sequential functional programs with a conditional construct. Most of our axioms have been shown to be independent. The structure of the systems reveals the symmetries of the calculi and equivalences since they differ only by a few simple axioms.


Proof System Axiom System Parallel Composition Late Congruence Process Algebra 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • Joachim Parrow
    • 1
    • 2
    • 3
  • Davide Sangiorgi
    • 4
  1. 1.Swedish Institute of Computer ScienceKistaSweden
  2. 2.Royal Institute of TechnologyStockholmSweden
  3. 3.Uppsala UniversitySweden
  4. 4.LFCS, Department of Computer ScienceUniversity of EdinburghEdinburghUK

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