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] (18351910)