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New page: A '''Kolmogorov space'''(or '''T<sub>0</sub> spaces''') is a topological space ''X'' in wich for any two points ''a'', '''b''', there is an open set ''U'' such that <math>a \in U</math...
A '''Kolmogorov space'''(or '''T<sub>0</sub> spaces''') is a [[topological space]] ''X'' in wich for any two points ''a'', '''b''', there is an open set ''U'' such that <math>a \in U</math> and <math>b \notin U</math> or <math>b \in U</math> and <math>a \notin U</math>.
[[category: topology]]
[[category: topology]]