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Essential and relational models†
Published online by Cambridge University Press: 23 July 2015
Abstract
Intersection type assignment systems can be used as a general framework for building logical models of λ-calculus that allow to reason about the denotation of terms in a finitary way. We define essential models (a new class of logical models) through a parametric type assignment system using non-idempotent intersection types. Under an interpretation of terms based on typings instead than the usual one based on types, every suitable instance of the parameters induces a λ-model, whose theory is sensible. We prove that this type assignment system provides a logical description of a family of λ-models arising from a category of sets and relations.
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- Copyright © Cambridge University Press 2015
Footnotes
Dedicated to Corrado Böhm for his 90th birthdays.
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