👉 In mathematics, an injection is a function that maps each element of one set to exactly one element of another set. In other words, when applied to two elements from different sets, the first set's elements are mapped onto the second set's elements without any overlap or duplication. An example of an injective function would be f: A -> B where: 1. For all a in A and b in B: - f(a) = b 2. For all a in A,
