Decidable varieties of p-algebras
Logic
2024-09-16 v1
Abstract
We show that for quasivarieties of p-algebras the properties of (i) having decidable first-order theory and (ii) having decidable first-order theory of the finite members, coincide. The only two quasivarieties with these properties are the trivial variety and the variety of Boolean algebras. This contrasts sharply, even for varieties, with the situation in Heyting algebras where decidable varieties do not coincide with finitely decidable ones.
Cite
@article{arxiv.2409.09015,
title = {Decidable varieties of p-algebras},
author = {Tomasz Kowalski and Katarzyna Słomczyńska},
journal= {arXiv preprint arXiv:2409.09015},
year = {2024}
}