On the Union Closed Fragment of Existential Second-Order Logic and Logics with Team Semantics

We present syntactic characterisations for the union closed fragments of existential second-order logic and of logics with team semantics. Since union closure is a semantical and undecidable property, the normal form we introduce enables the handling and provides a better understanding of this fragm...

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Veröffentlicht in:	arXiv.org 2021-07
Hauptverfasser:	Hoelzel, Matthias, Wilke, Richard
Format:	Artikel
Sprache:	eng
Schlagworte:	Canonical forms Computer Science - Logic in Computer Science Fragments Games Logic Semantics
Online-Zugang:	Volltext
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