What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_7: W(x_7) -> R_1(x_7). forall x_7: P_7(x_7) or W(x_7). forall x_7: Q(x_7) <-> R_1(x_7). exists x_7: ~P_7(x_7) or Q(x_7).
exists x_7: W(x_7) or Q(x_7). forall x_7: Q(x_7) -> R_1(x_7). forall x_7: R_1(x_7) -> Q(x_7).