Normal space

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Normal space: A topological space is termed normal if all points are closed sets (the assumption), and any two disjoint closed subsets can be separated by disjoint open subsets.

In some definitions, the assumption is skipped.

Related terms: normality (the property of a topological space being normal)

Term variations: Variations of normality offers a list.

Primary subject wiki entry: Topospaces:Normal space

Also located at: Wikipedia:Normal space, Planetmath:NormalSpace, Mathworld:NormalSpace