Cover (topology)

Cover (topology)

In mathematics, a cover of a set X is a collection of sets whose union contains X as a subset. Formally, if

is an indexed family of sets Uα, then C is a cover of X if

Read more about Cover (topology):  Cover in Topology, Refinement, Compactness, Covering Dimension

Famous quotes containing the word cover:

    Between us, we cover all knowledge; he knows all that can be known and I know the rest.
    Mark Twain [Samuel Langhorne Clemens] (1835–1910)