Difference between revisions of "1st-countable space"
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| − | + | A [[topological space]] ''X'' is said to be a '''1st-countable space''' if every point in ''X'' has a [[countable]] [[basis]]. | |
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| + | ==See Also== | ||
| + | *[[2nd-countable space]] | ||
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| + | [[category:topology]] | ||
Revision as of 05:58, February 25, 2012
A topological space X is said to be a 1st-countable space if every point in X has a countable basis.