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Hunt for the Collapse of Semantics in Infinite Abstract Argumentation Frameworks Spanring, Christof Abstract Argumentation Infinity Argumentation Semantics Discrete Structures In this work we discuss examples of infinite abstract argumentation frameworks (AFs). Our focus is mainly on existence of extensions of semantics such as semi-stable and stage semantics, as opposed to the collapse where some argumentation frameworks prevent any extension. We visit known examples from the literature and present novel variants. Finally, we also give insights into extension existence conditions. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Christof Spanring 2015 Is Part Of OASIcs, Volume 49, 2015 Imperial College Computing Student Workshop (ICCSW 2015) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/OASIcs.ICCSW.2015.70 urn:nbn:de:0030-drops-54839 https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.ICCSW.2015.70 eng https://creativecommons.org/licenses/by/3.0/legalcode