arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0802.0116cs.LOcs.AIcs.CCcs.MA
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非迭代模态逻辑的浅模型

Shallow Models for Non-Iterative Modal Logics

DFKI-Lab Bremen(不来梅德国人工智能研究中心实验室);Universität Bremen(不来梅大学);Imperial College London(帝国理工学院)

Lutz Schröder, Dirk Patinson

摘要:

用于建立模态逻辑PSPACE界的方法大致可以分为两类:语法驱动方法建立了可以在多项式空间中执行的穷举证明搜索,而语义方法直接构建浅层模型。在本文中,我们遵循后一种方法,并建立通用PSPACE界的一个大的和异构类的模态逻辑的共代数框架。特别是,没有完整的公理化的逻辑审查是必要的。这不仅在概念上补充了我们先前的句法方法,而且还涵盖了各种各样的新例子,这些新例子很难通过纯粹的句法手段加以利用。除了重新证明已知的复杂性界限的各种各样的结构不同的逻辑,我们应用我们的方法来获得以前未知的PSPACE界限Elgesem的逻辑机构和分级模态逻辑自反框架。

英文摘要:

The methods used to establish PSPACE-bounds for modal logics can roughly be grouped into two classes: syntax driven methods establish that exhaustive proof search can be performed in polynomial space whereas semantic approaches directly construct shallow models. In this paper, we follow the latter approach and establish generic PSPACE-bounds for a large and heterogeneous class of modal logics in a coalgebraic framework. In particular, no complete axiomatisation of the logic under scrutiny is needed. This does not only complement our earlier, syntactic, approach conceptually, but also covers a wide variety of new examples which are difficult to harness by purely syntactic means. Apart from re-proving known complexity bounds for a large variety of structurally different logics, we apply our method to obtain previously unknown PSPACE-bounds for Elgesem's logic of agency and for graded modal logic over reflexive frames.

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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