Abstract Model Structures and Compactness Theorems

Fuente: arXiv
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Autori principali: Roy, Sayantan, Basu, Sankha S., Chakraborty, Mihir K.
Natura: Preprint
Pubblicazione: 2025
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author Roy, Sayantan
Basu, Sankha S.
Chakraborty, Mihir K.
author_facet Roy, Sayantan
Basu, Sankha S.
Chakraborty, Mihir K.
contents The compactness theorem for a logic states, roughly, that the satisfiability of a set of well-formed formulas can be determined from the satisfiability of its finite subsets, and vice versa. Usually, proofs of this theorem depend on the syntactic/semantic particularities of the corresponding logic. In this paper, using the notion of \emph{abstract model structures}, we show that one can develop a generalized notion of compactness that is independent of these. Several characterization theorems for a particular class of compact abstract model structures are also proved.
format Preprint
id arxiv_https___arxiv_org_abs_2507_02343
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Abstract Model Structures and Compactness Theorems
Roy, Sayantan
Basu, Sankha S.
Chakraborty, Mihir K.
Logic
03C95, 03B22
The compactness theorem for a logic states, roughly, that the satisfiability of a set of well-formed formulas can be determined from the satisfiability of its finite subsets, and vice versa. Usually, proofs of this theorem depend on the syntactic/semantic particularities of the corresponding logic. In this paper, using the notion of \emph{abstract model structures}, we show that one can develop a generalized notion of compactness that is independent of these. Several characterization theorems for a particular class of compact abstract model structures are also proved.
title Abstract Model Structures and Compactness Theorems
topic Logic
03C95, 03B22
url https://arxiv.org/abs/2507.02343