👉 Non-divisiveness is a concept in mathematics and logic, which refers to the property of a set or function being able to be divided into two sets without any elements remaining. It means that it can be divided by one element while keeping all other elements intact. For example, consider the set S = {1, 2, 3}, where we can divide this set into two subsets: S1 = {1} and S2 = {2, 3}. In this case,