Category:Definitions/Extremally Disconnected Spaces

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This category contains definitions related to Extremally Disconnected Spaces.
Related results can be found in Category:Extremally Disconnected Spaces.


A $T_2$ (Hausdorff) topological space $T = \left({S, \tau}\right)$ is extremally disconnected if and only if the closure of every open set of $T$ is open.