T₁
Resembling epitheliomatous change.
That functions by use of a dot matrix
plural of Yomud
(of a topological space) Such that, for any two of its points, there exist respective open sets containing each and not the other.
すべてのT1位相空間では、単点集合が閉集合となり、位相に関する多くの証明が簡略化されます。
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DiQt
Free
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