👉 In mathematics and logic, an "enlargement" refers to a function that takes as input a set of elements from a larger set and returns a subset of those elements. This concept is often used in relation to sets or operations on sets. For instance, consider the operation of union (or intersection) between two sets A and B. If we have: A = {1, 2, 3} and B = {4, 5} The union of A and B would