👉 Neuterness in mathematics refers to a property that distinguishes a set from its complement. In other words, it is an abstract concept or measure that indicates how much of a set (or collection) is contained within itself. Specifically, a set A is said to be "neuterness-free" if for any two sets B and C such that A ∩ B = A ∩ C = φ (where φ represents the empty set), we have: A ∩ B ≠
