(mathematics) In the theory of metric spaces, a well-spaced set of points that is both uniformly discrete and relatively dense.

plural of Delone set

plural of empty set

(vulgar, idiomatic) Synonym of grow a pair

(topology) A set of "points" upon which a topology is built, thereby yielding a topological space. / (algebra) A set upon which some operations are defined, thereby yielding an algebraic structure.

plural of IP set

(mathematics) A set of natural numbers that contains all finite sums of some infinite set.

(archaic) To treat as unimportant or worthless; to despise, disregard, defy, unheed.

plural of directed set

(algebra, set theory) A set equipped with a preorder such that for any two elements a and b there is an element c such that a ≤ c and b ≤ c.