arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1404.0144cs.LO
收藏

模态独立逻辑

Modal Independence Logic

Juha Kontinen, Julian-Steffen Müller, Henning Schnoor, Heribert Vollmer

摘要:

本文介绍了模态独立逻辑MIL,模态逻辑,可以显式地谈论命题变量之间的独立性。MIL的公式不是在世界中评估的,而是在世界的集合中评估的,所谓的团队。在这种情况下,MIL可以被看作是Väänänen的模态依赖逻辑MDL的变体。我们发现,MIL嵌入MDL,是严格更具表现力。然而,在单例团队中,MIL并不比通常的模态逻辑更具表达力,但MIL是指数更简洁。利用一种新的互模拟形式,我们将这些表达性结果扩展到由各种广义依赖原子扩展的模态逻辑。我们通过给出MIL中用餐密码协议的匿名性要求的规范来证明MIL的表达能力。我们还研究了MIL的复杂性问题,并表明,虽然它更具表达性,但它的可满足性和模型检验问题具有与MDL相同的复杂性。

英文摘要:

This paper introduces modal independence logic MIL, a modal logic that can explicitly talk about independence among propositional variables. Formulas of MIL are not evaluated in worlds but in sets of worlds, so called teams. In this vein, MIL can be seen as a variant of Väänänen's modal dependence logic MDL. We show that MIL embeds MDL and is strictly more expressive. However, on singleton teams, MIL is shown to be not more expressive than usual modal logic, but MIL is exponentially more succinct. Making use of a new form of bisimulation, we extend these expressivity results to modal logics extended by various generalized dependence atoms. We demonstrate the expressive power of MIL by giving a specification of the anonymity requirement of the dining cryptographers protocol in MIL. We also study complexity issues of MIL and show that, though it is more expressive, its satisfiability and model checking problem have the same complexity as for MDL.

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。

↑