What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x: T_2(x) -> U(x). forall x: T_2(x) -> W_2(x). forall x: T_2(x) <-> W_2(x). forall x: ~U(x).
forall x: ~T_2(x). forall x: T_2(x) -> W_2(x). forall x: W_2(x) -> T_2(x).