Abstract
In this paper some properties of sequentially closed sets and <TEX>$k$</TEX>-closed sets in a topological space are discussed, it is shown that a space is a <TEX>$k$</TEX>-quotient image of a metric space if and only if its each sequentially closed set is <TEX>$k$</TEX>-closed, and some related examples about connectedness are obtained.
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