👉 "Non-adjoining" in mathematics refers to a property or condition that is not present between two or more elements of a set. This means that an element cannot be part of a pair, triple, or higher structure within the same set without also being included in another pair, triple, or higher structure. For example, if you have two sets A and B with no elements in common, it is clear that A is not an element of B (since there are no elements in common between them
