👉 In mathematics, a subset of a set A is any collection that contains all elements of A but excludes certain elements. The terms "subset" and "superset" are often used interchangeably when referring to sets. A subset of a set A means that it includes all of its own members (i.e., elements in A) while excluding every element not in A. For example, the set {1, 2} has two subsets: {1} and {2}. The set {
