The variety of coset relation algebras

Fuente: arXiv
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Hauptverfasser: Givant, Steven, Andréka, Hajnal
Format: Preprint
Veröffentlicht: 2018
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author Givant, Steven
Andréka, Hajnal
author_facet Givant, Steven
Andréka, Hajnal
contents A coset relation algebra is one embeddable into some full coset relation algebra, the latter is an algebra constructed from a system of groups, a coordinated system of isomorphisms between quotients of these groups, and a system of cosets that are used to "shift" the operation of relative multiplication. We prove that the class of coset relation algebras is equationally axiomatizable (that is to say, it is a variety), but no finite set of equations suffices to axiomatize the class (that is to say, the class is not finitely axiomatizable).
format Preprint
id arxiv_https___arxiv_org_abs_1804_03524
institution arXiv
publishDate 2018
record_format arxiv
spellingShingle The variety of coset relation algebras
Givant, Steven
Andréka, Hajnal
Logic
03G15, 03C05, 03C60, 03E20, 20A15, 03C52, 08C10
A coset relation algebra is one embeddable into some full coset relation algebra, the latter is an algebra constructed from a system of groups, a coordinated system of isomorphisms between quotients of these groups, and a system of cosets that are used to "shift" the operation of relative multiplication. We prove that the class of coset relation algebras is equationally axiomatizable (that is to say, it is a variety), but no finite set of equations suffices to axiomatize the class (that is to say, the class is not finitely axiomatizable).
title The variety of coset relation algebras
topic Logic
03G15, 03C05, 03C60, 03E20, 20A15, 03C52, 08C10
url https://arxiv.org/abs/1804.03524