Consider the following premises. forall x_10: W(x_10) -> Q_4(x_10). forall x_10: ~R(x_10). forall x_10: Q_4(x_10) <-> R_1(x_10). forall x_10: R_1(x_10) -> R(x_10). exists x_10: Q_4(x_10) -> W(x_10). Can we infer forall x_10: W(x_10) from them?
 From forall x_10: W(x_10) -> Q_4(x_10), exists x_10: Q_4(x_10) -> W(x_10) we can infer exists x_10: W(x_10) <-> Q_4(x_10). From forall x_10: R_1(x_10) -> R(x_10), forall x_10: ~R(x_10) we can infer forall x_10: ~R_1(x_10). From forall x_10: Q_4(x_10) <-> R_1(x_10), forall x_10: ~R_1(x_10) we can infer forall x_10: ~Q_4(x_10). Finally, from exists x_10: W(x_10) <-> Q_4(x_10), forall x_10: ~Q_4(x_10) we can infer exists x_10: ~W(x_10), which contradicts forall x_10: W(x_10). Therefore, the answer is no.