Consider the following premises. forall x_5: P_5(x_5) -> R_4(x_5). forall x_5: U_2(x_5) -> ~R_4(x_5). forall x_5: P_5(x_5). forall x_5: U_2(x_5) or T(x_5). Can we infer forall x_5: T(x_5) from them?
 From forall x_5: P_5(x_5) -> R_4(x_5), forall x_5: P_5(x_5) we can infer forall x_5: R_4(x_5). From forall x_5: U_2(x_5) -> ~R_4(x_5), forall x_5: R_4(x_5) we can infer forall x_5: ~U_2(x_5). Finally, from forall x_5: U_2(x_5) or T(x_5), forall x_5: ~U_2(x_5) we can infer forall x_5: T(x_5). Therefore, the answer is yes.