What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_8: R_4(x_8) or Q(x_8). forall x_8: Q(x_8) -> Q_1(x_8). exists x_8: R_4(x_8) <-> W(x_8). forall x_8: Q_1(x_8) -> W(x_8).
forall x_8: Q(x_8) -> W(x_8). exists x_8: R_4(x_8) -> W(x_8). exists x_8: W(x_8) -> R_4(x_8).