Consider the following premises. exists x_11: P_4(x_11) or W_3(x_11). forall x_11: T(x_11) or ~W_3(x_11). forall x_11: ~P_4(x_11). Can we infer exists x_11: T(x_11) from them?
 From forall x_11: T(x_11) or ~W_3(x_11) we can infer forall x_11: W_3(x_11) -> T(x_11). From exists x_11: P_4(x_11) or W_3(x_11), forall x_11: ~P_4(x_11) we can infer exists x_11: W_3(x_11). Finally, from forall x_11: W_3(x_11) -> T(x_11), exists x_11: W_3(x_11) we can infer exists x_11: T(x_11). Therefore, the answer is yes.