Characterizing EF over Infinite Trees and Modal Logic on Transitive Graphs

Characterizing EF over Infinite Trees and Modal Logic on Transitive Graphs
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描述无限树上的 EF 和传递图上的模态逻辑

DOI:
10.1007/978-3-642-22993-0_28
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发表时间:
2011
期刊:
Fundam. Informaticae
影响因子:
--
通讯作者:
Alessandro Facchini
Alessandro Facchini
中科院分区:
--
文献类型:
--
作者:
B. T. Cate;Alessandro Facchini

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我们提供了任意树上 EF(后代关系的模态逻辑)的几个有效的等价表征。更具体地说,我们证明,对于树的 EF 互模拟不变属性,可以通过 EF 公式定义、是 Borel 集、可以用弱一元二阶逻辑定义,所有这些都是一致的。该证明建立在 Bojanczyk 和 Idziaszek 提出的有限分支树情况下 EF 的已知代数表征之上。我们还获得了传递克里普克结构上模态逻辑的表征,作为弱单子二阶逻辑和 µ 微积分的片段。
We provide several effective equivalent characterizations of EF (the modal logic of the descendant relation) on arbitrary trees. More specifically, we prove that, for EF-bisimulation invariant properties of trees, being definable by an EF formula, being a Borel set, and being definable in weak monadic second order logic, all coincide. The proof builds upon a known algebraic characterization of EF for the case of finitely branching trees due to Bojanczyk and Idziaszek. We furthermore obtain characterizations of modal logic on transitive Kripke structures as a fragment of weak monadic second order logic and of the µ-calculus.
DOI: 10.1016/j.apal.2009.04.002
发表时间: 2009
期刊: 20th Annual IEEE Symposium on Logic in Computer Science (LICS' 05)
影响因子: --
作者:
A. Dawar;M. Otto
通讯作者: M. Otto