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- Strong Normalizability as a Finiteness Structure via the Taylor Expansion of λ -terms arxiv link

Auteur(s): Pagani Michele, Tasson Christine, Vaux L.(Corresp.)

Conference: 19th International Conference on Foundations of Software Science and Computation Structures (FoSSaCS 2016) (Eindhoven, NL, 2016-04-04)
Actes de conférence: , vol. Lecture Notes in Computer Science 9634 p.pp 408-423 (2016)


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Résumé:

In the folklore of linear logic, a common intuition is that the structure of finiteness spaces, introduced by Ehrhard, semantically reflects the strong normalization property of cut-elimination. We make this intuition formal in the context of the non-deterministic λ-calculus by introducing a finiteness structure on resource terms, which is such that a λ-term is strongly normalizing iff the support of its Taylor expansion is finitary. An application of our result is the existence of a normal form for the Taylor expansion of any strongly normalizable non-deterministic λ-term.