Necessary and sufficient condition for the existence of the one-point time on an oriented set

• Published in: Dopovidi Nacionalʹnoï akademiï nauk Ukraïni Vol. 8; pp. 9 - 15
• Main Author: Ya.I. Grushka
• Format: Journal Article
• Language: English
• Published: Publishing House "Akademperiodyka" 01.08.2019
• Subjects: changeable sets; ordered sets; oriented sets; time
• ISSN: 1025-6415; 2518-153X
• DOI: 10.15407/dopovidi2019.08.009

The subject of this article is closely related to the theory of changeable sets. The mathematically rigorous theory of changeable sets was constructed in 2012. From an intuitive point of view, the changeable sets are sets of objects which, unlike elements of ordinary (static) sets, can be in the pro...