The Monadic Grzegorczyk Logic

Fuente: arXiv
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Autori principali: Bezhanishvili, Guram, Khan, Mashiath
Natura: Preprint
Pubblicazione: 2024
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author Bezhanishvili, Guram
Khan, Mashiath
author_facet Bezhanishvili, Guram
Khan, Mashiath
contents We develop a semantic criterion for determining whether a given monadic modal logic axiomatizes the one-variable fragment of a predicate modal logic. We show that the criterion applies to the monadic Grzegorczyk logic $\textbf{MGrz}$, thus establishing that $\textbf{MGrz}$ axiomatizes the one-variable fragment of the predicate Grzegorczyk logic $\textbf{QGrz}$. This we do by proving the finite model property of $\textbf{MGrz}$, which is achieved by strengthening the notion of a maximal point of a descriptive $\textbf{MGrz}$-frame and by refining the existing selective filtration methods.
format Preprint
id arxiv_https___arxiv_org_abs_2412_10854
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The Monadic Grzegorczyk Logic
Bezhanishvili, Guram
Khan, Mashiath
Logic
03B45, 03C90, 06E25
We develop a semantic criterion for determining whether a given monadic modal logic axiomatizes the one-variable fragment of a predicate modal logic. We show that the criterion applies to the monadic Grzegorczyk logic $\textbf{MGrz}$, thus establishing that $\textbf{MGrz}$ axiomatizes the one-variable fragment of the predicate Grzegorczyk logic $\textbf{QGrz}$. This we do by proving the finite model property of $\textbf{MGrz}$, which is achieved by strengthening the notion of a maximal point of a descriptive $\textbf{MGrz}$-frame and by refining the existing selective filtration methods.
title The Monadic Grzegorczyk Logic
topic Logic
03B45, 03C90, 06E25
url https://arxiv.org/abs/2412.10854