What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_12: W(x_12) -> P_12(x_12). forall x_12: W(x_12) or R(x_12). exists x_12: R(x_12) -> P_12(x_12). forall x_12: P_12(x_12) -> W(x_12). forall x_12: P_12(x_12) -> R(x_12).
forall x_12: W(x_12) -> R(x_12). exists x_12: R(x_12) -> W(x_12). exists x_12: P_12(x_12). forall x_12: W(x_12) <-> P_12(x_12). forall x_12: P_12(x_12) <-> W(x_12). exists x_12: R(x_12) <-> P_12(x_12). exists x_12: P_12(x_12) <-> R(x_12).