Maths, Mathematics, Discrete Mathematics, Discrete Maths, Sets.
set B, if for every set X, X is a member of A if and only if X is a member of B, then A is equal to B. To simplify the rule, we will paraphrase it. A set A is equal to a set B if and only if every element of A exists in Β and every element of B exists in A. For example, suppose A = {1, 3, 4} and B