What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_2: T(x_2) -> W(x_2). forall x_2: W(x_2) -> T(x_2). exists x_2: U(x_2) -> W(x_2). forall x_2: ~T(x_2).
forall x_2: ~W(x_2). exists x_2: U(x_2) -> T(x_2). forall x_2: T(x_2) <-> W(x_2). forall x_2: W(x_2) <-> T(x_2).