第一可数半正则-闭空间的等价性

The Equivalance of the First CountableSemi-jregular-closed Spaces

证明了第一可数半正则-闭空间、第一可数半正则极大空间、第一可数半正则极小空间、第一可数半正则弱紧空间的等价性.

The first countable semiregularclosed spaces,maximal first countable semiregular spaces,minimal first countable semiregular spaces and the first countable feebly compact semiregular spaces are proved to be equivalent.