Proceedings of the 33rd Annual ACM/IEEE Symposium on Logic in Computer Science 2018
DOI: 10.1145/3209108.3209180
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A van Benthem Theorem for Fuzzy Modal Logic

Abstract: In probabilistic transition systems, behavioural metrics provide a more fine-grained and stable measure of system equivalence than crisp notions of bisimilarity. They correlate strongly to quantitative probabilistic logics, and in fact the distance induced by a probabilistic modal logic taking values in the real unit interval has been shown to coincide with behavioural distance. For probabilistic systems, probabilistic modal logic thus plays an analogous role to that of Hennessy-Milner logic on classical label… Show more

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Cited by 15 publications
(16 citation statements)
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References 65 publications
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“…Fuzzy logic is a form of multi-valued logic later popularized as logic of vagueness by Zadeh as was reviewed by [12]. It is based on replacing the standard set of Boolean truth values with a dif f erent lattice, most often, like in the present paper, the unit interval.…”
Section: Related Workmentioning
confidence: 97%
“…Fuzzy logic is a form of multi-valued logic later popularized as logic of vagueness by Zadeh as was reviewed by [12]. It is based on replacing the standard set of Boolean truth values with a dif f erent lattice, most often, like in the present paper, the unit interval.…”
Section: Related Workmentioning
confidence: 97%
“…To our best knowledge, the only previously known instances of this result in the real-valued setting are the ones for [0, 1]-valued fuzzy modal logic [57] and for quantitative probabilistic modal logic [58]. In the two-valued setting, we cover a previous coalgebraic van Benthem result [52] by instantiating to V = 2, and in fact obtain an additional asymmetric version, characterizing fragments that are preserved under simulation.…”
Section: Locality and Modal Characterizationmentioning
confidence: 99%
“…in quantitative van Benthem theorems. In previous work with Pattinson and König, we have established such theorems for quantitative modal logics of fuzzy [57] and probabilistic [58] transition systems. In the quantitative setting, these theorems take the form of approximability properties, and state that every behaviourally nonexpansive quantitative firstorder property is approximable by quantitative modal formulae of bounded rank.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Bisimulations have been studied for the guarded fragment and many variations [33], [38], [46]. Bisimulations have also been studied recently for coalgebraic modal logics [47], [48] and fuzzy modal logics [49].…”
Section: Introductionmentioning
confidence: 99%