Multiparty Session Types as Coherence Proofs

Marco Carbone, Fabrizio Montesi, Carsten Schürmann 0001, Nobuko Yoshida [2015].
In proceedings of CONCUR 2015, pp. 412-426.

We propose a Curry-Howard correspondence between a language for programming multiparty sessions and a generalisation of Classical Linear Logic (CLL). In this framework, propositions correspond to the local behaviour of a participant in a multiparty session type, proofs to processes, and proof normalisation to executing communications. Our key contribution is generalising duality, from CLL, to a new notion of n-ary compatibility, called coherence. Building on coherence as a principle of compositionality, we generalise the cut rule of CLL to a new rule for composing many processes communicating in a multiparty session. We prove the soundness of our model by showing the admissibility of our new rule, which entails deadlock-freedom via our correspondence.
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  author       = {Marco Carbone and
                  Fabrizio Montesi and
                  Carsten Sch{\"{u}}rmann and
                  Nobuko Yoshida},
  editor       = {Luca Aceto and
                  David de Frutos{-}Escrig},
  title        = {Multiparty Session Types as Coherence Proofs},
  booktitle    = {26th International Conference on Concurrency Theory, {CONCUR} 2015,
                  Madrid, Spain, September 1.4, 2015},
  series       = {LIPIcs},
  volume       = {42},
  pages        = {412--426},
  publisher    = {Schloss Dagstuhl - Leibniz-Zentrum f{\"{u}}r Informatik},
  year         = {2015},
  url          = {},
  doi          = {10.4230/LIPICS.CONCUR.2015.412},
  timestamp    = {Wed, 10 Jan 2024 22:27:40 +0100},
  biburl       = {},
  bibsource    = {dblp computer science bibliography,}

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