👉 Nonassignable is a term in mathematical logic that refers to a set of objects whose existence can be proven or disproven by means of an axiomatic system. It is often used in the context of constructive mathematics, where one seeks to constructively prove the existence of certain sets using a consistent axiomatic system. In nonassignable sets, one does not have any way to assign values to elements of these sets without violating the axioms or rules that define them. Instead, one constructs
