HOPLA-A Higher-Order Process Language

  • Authors:
  • Mikkel Nygaard;Glynn Winskel

  • Affiliations:
  • -;-

  • Venue:
  • CONCUR '02 Proceedings of the 13th International Conference on Concurrency Theory
  • Year:
  • 2002

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Abstract

A small but powerful language for higher-order nondeterministic processes is introduced. Its roots in a linear domain theory for concurrency are sketched though for the most part it lends itself to a more operational account. The language can be viewed as an extension of the lambda calculus with a "prefixed sum", in which types express the form of computation path of which a process is capable. Its operational semantics, bisimulation, congruence properties and expressive power are explored; in particular, it is shown how it can directly encode process languages such as CCS, CCS with process passing, and mobile ambients with public names.