Lück, Martin and Vilander, Miikka - On the Succinctness of Atoms of Dependency

lmcs:5263 - Logical Methods in Computer Science, August 20, 2019, Volume 15, Issue 3 - https://doi.org/10.23638/LMCS-15(3:17)2019
On the Succinctness of Atoms of Dependency

Authors: Lück, Martin and Vilander, Miikka

Propositional team logic is the propositional analog to first-order team logic. Non-classical atoms of dependence, independence, inclusion, exclusion and anonymity can be expressed in it, but for all atoms except dependence only exponential translations are known. In this paper, we systematically compare their succinctness in the existential fragment, where the splitting disjunction only occurs positively, and in full propositional team logic with unrestricted negation. By introducing a variant of the Ehrenfeucht-Fra\"{i}ssé game called formula size game into team logic, we obtain exponential lower bounds in the existential fragment for all atoms. In the full fragment, we present polynomial upper bounds also for all atoms.


Volume: Volume 15, Issue 3
Published on: August 20, 2019
Submitted on: March 7, 2019
Keywords: Computer Science - Logic in Computer Science,68Q17, 03B60, 03B70,F.4.1


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