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Countability and sequentiality in fuzzy topological spaces

✍ Scribed by F.K Mohannadi; M.W Warner


Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
507 KB
Volume
29
Category
Article
ISSN
0165-0114

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## Abstract Under the axiom of choice, every first countable space is a FrΓ©chet‐Urysohn space. Although, in its absence even ℝ may fail to be a sequential space. Our goal in this paper is to discuss under which set‐theoretic conditions some topological classes, such as the first countable spaces,