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arXiv 0903.1822cs.LO
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直觉序贯演算的连续传递风格与强正规化

Continuation-Passing Style and Strong Normalisation for Intuitionistic Sequent Calculi

Jose Espirito Santo, Ralph Matthes, Luis Pinto

摘要:

Curien和Herbelin的λ mu mu-演算的按名称调用版本的直观片段被隔离,并通过嵌入到简单类型的λ mu-演算中来证明其强规范化。我们的嵌入是一个延续和垃圾传递风格的翻译,灵感来自Ikeda和Nakazawa的Parigot的λ\_mu演算的翻译。嵌入严格模拟约简,而通常的连续传递式转换删除置换约简步骤。对于我们的直觉主义微积分,我们甚至只需要传递“垃圾单元”。我们将同样的方法应用于其他演算,即简单类型演算的连续扩展导致我们的直觉系统,并且已经对于我们考虑的最简单的扩展(具有广义应用的演算),这产生了通过约简保持嵌入的强规范化的第一个证明。所得到的结果扩展到第二和更高的阶结石。

英文摘要:

The intuitionistic fragment of the call-by-name version of Curien and Herbelin's λ\_mu\_{mu}-calculus is isolated and proved strongly normalising by means of an embedding into the simply-typed lambda-calculus. Our embedding is a continuation-and-garbage-passing style translation, the inspiring idea coming from Ikeda and Nakazawa's translation of Parigot's λ\_mu-calculus. The embedding strictly simulates reductions while usual continuation-passing-style transformations erase permutative reduction steps. For our intuitionistic sequent calculus, we even only need "units of garbage" to be passed. We apply the same method to other calculi, namely successive extensions of the simply-typed λ-calculus leading to our intuitionistic system, and already for the simplest extension we consider (λ-calculus with generalised application), this yields the first proof of strong normalisation through a reduction-preserving embedding. The results obtained extend to second and higher-order calculi.

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