RUS  ENG
Full version
JOURNALS // Algebra i logika // Archive

Algebra Logika, 2021 Volume 60, Number 1, Pages 57–80 (Mi al2649)

This article is cited in 4 papers

Topologies, ranks, and closures for families of theories. II

N. D. Markhabatova, S. V. Sudoplatovbac

a Novosibirsk State Technical University
b Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
c Novosibirsk State University

Abstract: We describe topological properties, ranks, and closures as well as their dynamics for families of theories. Closures for families of theories are introduced based on sentences of the given theories. We look at properties of these closures and establish their relationship with standard closures. Values of $e_1$-spectra, as well as conditions for the existence of least generating sets, are characterized. Closures for linearly ordered families of theories are examined.

Keywords: topology, rank, closure, family of theories.

UDC: 510.67

Received: 22.05.2020
Revised: 31.05.2021

DOI: 10.33048/alglog.2021.60.104


 English version:
Algebra and Logic, 2021, 60:1, 38–52

Bibliographic databases:


© Steklov Math. Inst. of RAS, 2025