What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x: T_1(x) or W_4(x). forall x: P(x) -> W_4(x). forall x: ~T_1(x) or Q(x). forall x: ~P(x). forall x: W_4(x) -> P(x).
forall x: ~W_4(x). forall x: W_4(x) or Q(x). forall x: P(x) <-> W_4(x). forall x: W_4(x) <-> P(x).