Consider the following premises. exists x_9: P_9(x_9) -> U_3(x_9). forall x_9: Q_9(x_9) -> U_3(x_9). forall x_9: Q_1(x_9). forall x_9: P_9(x_9) or Q_9(x_9). Can we infer forall x_9: ~U_3(x_9) from them?
 From exists x_9: P_9(x_9) -> U_3(x_9), forall x_9: Q_9(x_9) -> U_3(x_9), forall x_9: P_9(x_9) or Q_9(x_9) we can infer exists x_9: U_3(x_9). From exists x_9: U_3(x_9), forall x_9: Q_1(x_9) we can infer exists x_9: U_3(x_9) and Q_1(x_9). Finally, from exists x_9: U_3(x_9) and Q_1(x_9) we can infer exists x_9: U_3(x_9), which contradicts forall x_9: ~U_3(x_9). Therefore, the answer is no.