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A further strengthening of a theorem of Juhasz and Spadaro


Angelo Bella

Abstract

By using a stronger notion of free sequence, we improve a result of Juhasz and Spadaro on the cardinality of a chain of spaces.

Keywords: Free sequence, c-free sequence, almost Lindelof, chain of spaces, cardinality

Quaestiones Mathematicae 37(2014), 303-307

Journal Identifiers


eISSN: 1727-933X
print ISSN: 1607-3606