1Department of Mathematics, California State University, Fresno
Journal of Mathematical Sciences and Applications.
2016,
Vol. 4 No. 1, 29-33
DOI: 10.12691/jmsa-4-1-5
Copyright © 2016 Science and Education PublishingCite this paper: Maria Nogin, Bing Xu. The Relationship between the Topological Properties and Common Modal Logics.
Journal of Mathematical Sciences and Applications. 2016; 4(1):29-33. doi: 10.12691/jmsa-4-1-5.
Correspondence to: Maria Nogin, Department of Mathematics, California State University, Fresno. Email:
mnogin@csufresno.eduAbstract
A modal language is the language of the classical logic extended by additional operator(s), e.g.

. Modal logics have a variety of interpretations and applications in different sciences, and depending on the context, different axioms involving

may be assumed. In topological interpretations, the operator

interpreted as interior. It is well known that the modal logic S4 is sound and complete over all topological spaces. In this paper we reverse the question. Given a set
X and any interpretation of

in X that satisfies a given subset of the axioms of S4, we determine which topological properties must be possessed by the image of the interpretation of

.
Keywords