👉 Bijection (or bijection) is a mathematical concept in set theory, which means "mapping" from one set to another such that for every element of the first set there exists an element of the second set that maps to it. In other words, if f and g are functions, then f(g(x)) = x for all x in the domain of g. In the context of bijections, a bijection is a one-to-one correspondence between two sets, meaning every element in
