Consider the following premises. exists x: W(x) -> T_4(x). forall x: ~R(x) or T_4(x). forall x: T_4(x) -> W(x). forall x: R(x) or P(x). forall x: P(x) -> W(x). Can we infer forall x: T_4(x) -> W(x) from them?
That is one of the premises. Therefore, the answer is yes.