Disjoint sets - Wikipedia In set theory in mathematics and formal logic, two sets are said to be disjoint sets if they have no element in common Equivalently, two disjoint sets are sets whose intersection is the empty set [1]
Disjoint union - Wikipedia In mathematics, the disjoint union (or discriminated union) of the sets A and B is the set formed from the elements of A and B labelled (indexed) with the name of the set from which they come So, an element belonging to both A and B appears twice in the disjoint union, with two different labels
Disjoint Sets - GeeksforGeeks Disjoint sets are also known as disjoint collections or non-intersecting sets and refer to those sets which don't have any identical element common between them