👉 Non-pluralities are sets that do not contain any element that is a member of another set. Non-pluralities can be defined as collections of elements that are distinct from each other, but which themselves are not members of any other collection. For example, if we have two sets A and B, then the non-union of A and B would be a set containing only the elements of both A and B, while the union of A and B itself would contain all the elements of both
