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arXiv 1503.08936math.LOcs.FLcs.LO
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无限词上一元二阶逻辑的模型论刻画

A model-theoretic characterization of monadic second order logic on infinite words

Silvio Ghilardi, Samuel J. van Gool

摘要:

一元二阶逻辑和线性时态逻辑是两种可用于描述无限词类的逻辑形式,即,基于自然数的一阶模型,具有顺序、后继和多个一元谓词符号。无限字上的一元二阶逻辑(S1 S)可以替代地被描述为在$\mathcal{P}(ω)$中解释的一阶逻辑,$\mathcal{P}(ω)$是自然数的幂集布尔代数,配备有用于“初始”、“下一个”和“未来”状态的模态算子。我们证明了这种结构的一阶理论是对应于线性时态逻辑(LTL)的适当版本的一类代数的模型伴侣没有直到。证明关键使用两个经典的,非平凡的结果,从文献中,即完备性LTL关于自然数,和S1 S-公式和Büchi自动机之间的对应关系。

英文摘要:

Monadic second order logic and linear temporal logic are two logical formalisms that can be used to describe classes of infinite words, i.e., first-order models based on the natural numbers with order, successor, and finitely many unary predicate symbols. Monadic second order logic over infinite words (S1S) can alternatively be described as a first-order logic interpreted in $\mathcal{P}(ω)$, the power set Boolean algebra of the natural numbers, equipped with modal operators for 'initial', 'next' and 'future' states. We prove that the first-order theory of this structure is the model companion of a class of algebras corresponding to the appropriate version of linear temporal logic (LTL) without until. The proof makes crucial use of two classical, non-trivial results from the literature, namely the completeness of LTL with respect to the natural numbers, and the correspondence between S1S-formulas and Büchi automata.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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