What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? ~T(e) -> u. forall y_1: W(y_1) -> T(y_1). ~W(e). forall y_1: T(y_1) -> W(y_1).
forall y_1: W(y_1) <-> T(y_1). forall y_1: T(y_1) <-> W(y_1).