👉 In logic and mathematics, an "iffyness" is a property of logical statements that can be defined in terms of propositional logic. In this context, an "iffyness" refers to whether two propositions are logically equivalent or not. A proposition is said to be logically equivalent if it can be expressed as either one of the two possible interpretations: true (T) and false (F). For example, a statement like "All birds have wings" is logically equivalent to saying that "
