Consider the following premises. forall x_9: R(x_9) -> S_3(x_9). forall x_9: Q_5(x_9) -> R_5(x_9). forall x_9: S_3(x_9) -> R(x_9). forall x_9: R(x_9) -> Q_5(x_9). Can we infer forall x_9: S_3(x_9) -> R_5(x_9) from them?
 From forall x_9: S_3(x_9) -> R(x_9), forall x_9: R(x_9) -> S_3(x_9) we can infer forall x_9: S_3(x_9) <-> R(x_9). From forall x_9: R(x_9) -> Q_5(x_9), forall x_9: Q_5(x_9) -> R_5(x_9) we can infer forall x_9: R(x_9) -> R_5(x_9). From forall x_9: S_3(x_9) <-> R(x_9) we can infer forall x_9: S_3(x_9) -> R(x_9). Finally, from forall x_9: S_3(x_9) -> R(x_9), forall x_9: R(x_9) -> R_5(x_9) we can infer forall x_9: S_3(x_9) -> R_5(x_9). Therefore, the answer is yes.