Consider the following premises. exists x_6: P_6(x_6) or T(x_6). forall x_6: S_2(x_6) -> R(x_6). forall x_6: ~P_6(x_6) or S_2(x_6). forall x_6: R(x_6) or ~T(x_6). Can we infer exists x_6: P_6(x_6) or T(x_6) from them?
That is one of the premises. Therefore, the answer is yes.