Consider the following premises. forall x_14: P_9(x_14) -> P_1(x_14). forall x_14: P_9(x_14). forall x_14: S_4(x_14) or ~Q_1(x_14). forall x_14: Q_1(x_14) or ~P_1(x_14). Can we infer exists x_14: ~S_4(x_14) from them?
 From forall x_14: Q_1(x_14) or ~P_1(x_14) we can infer forall x_14: P_1(x_14) -> Q_1(x_14). From forall x_14: P_9(x_14) -> P_1(x_14), forall x_14: P_9(x_14) we can infer forall x_14: P_1(x_14). From forall x_14: S_4(x_14) or ~Q_1(x_14) we can infer forall x_14: Q_1(x_14) -> S_4(x_14). From forall x_14: P_1(x_14) -> Q_1(x_14), forall x_14: Q_1(x_14) -> S_4(x_14) we can infer forall x_14: P_1(x_14) -> S_4(x_14). Finally, from forall x_14: P_1(x_14) -> S_4(x_14), forall x_14: P_1(x_14) we can infer forall x_14: S_4(x_14), which contradicts exists x_14: ~S_4(x_14). Therefore, the answer is no.