👉 In mathematics, an isodimorphic relationship or function between two sets X and Y is a mapping that preserves both the order of elements in X and the order of elements in Y. This means that if f is an isodimorphism from set X to set Y, then for all x,y∈X, we have f(x) = y implies f(y) = x. For example, let's say you have two sets A and B, and you want to know which elements are