EXPRESSing Session Types

09/13/2023

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by   Ilaria Castellani, et al.

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To celebrate the 30th edition of EXPRESS and the 20th edition of SOS we overview how session types can be expressed in a type theory for the standard π-calculus by means of a suitable encoding. The encoding allows one to reuse results about the π-calculus in the context of session-based communications, thus deepening the understanding of sessions and reducing redundancies in their theoretical foundations. Perhaps surprisingly, the encoding has practical implications as well, by enabling refined forms of deadlock analysis as well as allowing session type inference by means of a conventional type inference algorithm.