Consider the following premises. forall x_9: T_4(x_9) or ~Q_6(x_9). forall x_9: R(x_9) -> Q_6(x_9). forall x_9: T(x_9) -> T_4(x_9). forall x_9: T(x_9). Can we infer forall x_9: T_4(x_9) from them?
 From forall x_9: T(x_9) we can infer forall x_9: T(x_9) or R(x_9). From forall x_9: T_4(x_9) or ~Q_6(x_9) we can infer forall x_9: Q_6(x_9) -> T_4(x_9). From forall x_9: R(x_9) -> Q_6(x_9), forall x_9: Q_6(x_9) -> T_4(x_9) we can infer forall x_9: R(x_9) -> T_4(x_9). Finally, from forall x_9: T(x_9) -> T_4(x_9), forall x_9: R(x_9) -> T_4(x_9), forall x_9: T(x_9) or R(x_9) we can infer forall x_9: T_4(x_9). Therefore, the answer is yes.