Topology | Properties of topological spaces

Rothberger space

In mathematics, a Rothberger space is a topological space that satisfies a certain a basic selection principle. A Rothberger space is a space in which for every sequence of open covers of the space there are sets such that the family covers the space. (Wikipedia).

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From playlist Fortunoff Video Archive for Holocaust Testimonies

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Related pages

Topological space | Selection principle | Cichoń's diagram | Baire space | Strong measure zero set