Alt: I think ifif makes much more sense than ifeff. It’s super unclear where the ‘e’ comes from or why there’s two ’f’s, but “if and only if” is “ifif” if you take the start and the end.
Alt: I think ifif makes much more sense than ifeff. It’s super unclear where the ‘e’ comes from or why there’s two ’f’s, but “if and only if” is “ifif” if you take the start and the end.