What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_8: R_3(x_8) <-> S_4(x_8). forall x_8: S_4(x_8) and Q_8(x_8).
forall x_8: S_4(x_8). forall x_8: Q_8(x_8). exists x_8: R_3(x_8) -> S_4(x_8). exists x_8: S_4(x_8) -> R_3(x_8).