Consider the following premises. forall x_11: P_3(x_11) or T(x_11). exists x_11: T(x_11) -> S(x_11). forall x_11: ~P_3(x_11). Can we infer forall x_11: ~(S(x_11) or W_3(x_11)) from them? If possible, name the inference rules being used at each step.
That contradicts the premises. Therefore the answer is no.