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北美退伍军人节(Veterans Day),12 日无更新
arXiv 2011.10209cs.LO
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具有公式不动点的线性逻辑范畴模型

Categorical models of Linear Logic with fixed points of formulas

Thomas Ehrhard, Farzad Jafarrahmani

摘要:

我们开发了一个指称语义的muLL,一个版本的命题线性逻辑与最小和最大的不动点扩展大卫Baelde的命题muMALL与指数。我们的一般范畴设置是基于西利范畴的概念和强函子作用于他们。我们展示两个简单的例子,这种设置。在第一个,这是基于类别的集合和关系,最小和最大的不动点是以同样的方式解释。在第二种情况下,基于一个配备了总体概念(非一致总体空间)和保持它们的关系的集合范畴,最小和最大不动点有不同的解释。后一个模型表明,muLL享有一个指称形式的规范化证明。

英文摘要:

We develop a denotational semantics of muLL, a version of propositional Linear Logic with least and greatest fixed points extending David Baelde's propositional muMALL with exponentials. Our general categorical setting is based on the notion of Seely category and on strong functors acting on them. We exhibit two simple instances of this setting. In the first one, which is based on the category of sets and relations, least and greatest fixed points are interpreted in the same way. In the second one, based on a category of sets equipped with a notion of totality (non-uniform totality spaces) and relations preserving them, least and greatest fixed points have distinct interpretations. This latter model shows that muLL enjoys a denotational form of normalization of proofs.

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