English

Partial Model Theory -- Ultraproducts and Compactness

Logic 2024-05-20 v1

Abstract

In the present paper we prove the compactness theorem with respect to partial structures and quasi-truth, using the technique of ultraproducts. Partial structures and quasi-truth are two notions developed within the partial structures approach, which is a philosophical conception that emerged in the context of contemporary philosophy of science. Nevertheless, the notions developed within this conception, in particular the two mentioned, have a model-theoretic content that has not been explored so far, so that this paper is part of a project where we intend to analyze their formal properties by means of the development of a partial model theory, which is an extension of traditional model theory to partial structures.

Keywords

Cite

@article{arxiv.2405.10388,
  title  = {Partial Model Theory -- Ultraproducts and Compactness},
  author = {Rodolfo Cunha Carnier},
  journal= {arXiv preprint arXiv:2405.10388},
  year   = {2024}
}
R2 v1 2026-06-28T16:30:04.781Z