2026-07-23T06:06:20Z https://drops.dagstuhl.de/oai

oai:drops-oai.dagstuhl.de:7673 2024-03-06T10:40:47Z ddc:004 open_access

The Power of the Filtration Technique for Modal Logics with Team Semantics Lück, Martin dependence logic,team logic,modal logic,finite model theory Modal Team Logic (MTL) extends Väänänen's Modal Dependence Logic (MDL) by Boolean negation. Its satisfiability problem is decidable, but the exact complexity is not yet understood very well. We investigate a model-theoretical approach and generalize the successful filtration technique to work in team semantics. We identify an "existential" fragment of MTL that enjoys the exponential model property and is therefore, like Propositional Team Logic (PTL), complete for the class AEXP(poly). Moreover, superexponential filtration lower bounds for different fragments of MTL are proven, up to the full logic having no filtration for any elementary size bound. As a corollary, superexponential gaps of succinctness between MTL fragments of equal expressive power are shown. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Martin Lück 2017 Is Part Of LIPIcs, Volume 82, 26th EACSL Annual Conference on Computer Science Logic (CSL 2017) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/LIPIcs.CSL.2017.31 urn:nbn:de:0030-drops-76739 https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CSL.2017.31 eng https://creativecommons.org/licenses/by/3.0/legalcode