On two-variable guarded fragment logic with expressive local Presburger constraints

Fuente: arXiv
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Autori principali: Lu, Chia-Hsuan, Tan, Tony
Natura: Preprint
Pubblicazione: 2022
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author Lu, Chia-Hsuan
Tan, Tony
author_facet Lu, Chia-Hsuan
Tan, Tony
contents We consider the extension of the two-variable guarded fragment logic with local Presburger quantifiers. These are quantifiers that can express properties such as "the number of incoming blue edges plus twice the number of outgoing red edges is at most three times the number of incoming green edges" and captures various description logics with counting, but without constant symbols. We show that the satisfiability problem for this logic is EXP-complete. While the lower bound already holds for the standard two-variable guarded fragment logic, the upper bound is established by a novel, yet simple deterministic graph-based algorithm.
format Preprint
id arxiv_https___arxiv_org_abs_2206_13731
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle On two-variable guarded fragment logic with expressive local Presburger constraints
Lu, Chia-Hsuan
Tan, Tony
Logic in Computer Science
We consider the extension of the two-variable guarded fragment logic with local Presburger quantifiers. These are quantifiers that can express properties such as "the number of incoming blue edges plus twice the number of outgoing red edges is at most three times the number of incoming green edges" and captures various description logics with counting, but without constant symbols. We show that the satisfiability problem for this logic is EXP-complete. While the lower bound already holds for the standard two-variable guarded fragment logic, the upper bound is established by a novel, yet simple deterministic graph-based algorithm.
title On two-variable guarded fragment logic with expressive local Presburger constraints
topic Logic in Computer Science
url https://arxiv.org/abs/2206.13731