Consider the following premises. forall x_4: T_3(x_4) -> ~Q_4(x_4). forall x_4: T_3(x_4). forall x_4: Q_4(x_4). Can we infer exists x_4: ~W(x_4) from them? If possible, name the inference rules being used at each step.
The premises are contradictory and we can infer anything from them. Therefore, the answer is yes.