Topological Spaces with the Freese–Nation Property
Open Access
- 18 July 2019
- journal article
- research article
- Published by Walter de Gruyter GmbH in Annales Mathematicae Silesianae
- Vol. 33 (1) , 41-54
Abstract
We give a proposal of generalization of the Freese–Nation property for topological spaces. We introduce a few properties related to Freese–Nation property: FNS, FN, FNS*, FNI. This article presents some relationship between these concepts. We show that spaces with the FNS property satisfy ccc and any product of such spaces also satisfies ccc. We show that all metrizable spaces have the FN property.Keywords
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