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arXiv · 1603.07218

Strong Normalizability as a Finiteness Structure via the Taylor Expansion of {\lambda}-terms

Michele Pagani·Christine Tasson·Lionel Vaux
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Abstract

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 {\lambda}-calculus by introducing a finiteness structure on resource terms, which is such that a {\lambda}-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 {\lambda}-term.

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Michele Pagani, Christine Tasson, Lionel Vaux. 2016-03-23. Strong Normalizability as a Finiteness Structure via the Taylor Expansion of {\lambda}-terms. https://arxiv.org/abs/1603.07218

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