What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall y_4: W_2(y_4). forall y_4: T(y_4) -> ~W_2(y_4). w_1 <-> T(e_1).
w_1 -> T(e_1). T(e_1) -> w_1. forall y_4: ~T(y_4).