논문KCI 등재
Note on weakly first countable spaces
대한수학회 (The Korean Mathematical Society)|2002.07|대한수학회논문집 (Communications of the KMS)|제17권 제3호|pp. 531-534
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Abstract
We prove that the star operator and the sequentialclosure operator on a weakly first countable space are the sameand show that the Fr'echetness is a sufficient condition for aweakly first countable space to be first countable.
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