Consider the following premises. forall x_10: T_1(x_10) -> ~Q_3(x_10). forall x_10: T_1(x_10) -> Q_10(x_10). forall x_10: Q_10(x_10) -> R_10(x_10). forall x_10: R_10(x_10) -> R_6(x_10). forall x_10: R_6(x_10) -> T_1(x_10). forall x_10: Q_3(x_10). Can we infer forall x_10: ~R_6(x_10) from them?
 From forall x_10: T_1(x_10) -> Q_10(x_10), forall x_10: Q_10(x_10) -> R_10(x_10) we can infer forall x_10: T_1(x_10) -> R_10(x_10). From forall x_10: T_1(x_10) -> R_10(x_10), forall x_10: R_10(x_10) -> R_6(x_10) we can infer forall x_10: T_1(x_10) -> R_6(x_10). From forall x_10: T_1(x_10) -> ~Q_3(x_10), forall x_10: Q_3(x_10) we can infer forall x_10: ~T_1(x_10). From forall x_10: T_1(x_10) -> R_6(x_10), forall x_10: R_6(x_10) -> T_1(x_10) we can infer forall x_10: T_1(x_10) <-> R_6(x_10). Finally, from forall x_10: T_1(x_10) <-> R_6(x_10), forall x_10: ~T_1(x_10) we can infer forall x_10: ~R_6(x_10). Therefore, the answer is yes.