Editing Cover (section)

== Mathematics, science and technology ==
* [[Cover (algebra)]], the concept of an algebraic structure that maps onto another structure in structure-preserving fashion
* [[Cover (topology)]], the mathematical concept of a collection of sets whose union contains each set as a subset
* Cover, a pair in the [[covering relation]] of a partially ordered set, or the greater element in such a pair
* Cover, in database theory, an equivalent set of [[constraint (database)|constraints]]
* [[Covering system]] in number theory is a finite set of residue classes that cover all integers
* [[Covering code]] in coding theory is a set of elements (''codewords'') such that every element of the space is within a fixed distance of some codeword.
* [[Land cover]], physical material on the surface of the earth
* [[Concrete cover]], in engineering, distance between reinforcement and the outer surface of element
* Sedimentary cover, in geology, overlies a [[basement (geology)|basement]] or crystalline basement