Consider the following premises. exists x_13: P_1(x_13). forall x_13: R_3(x_13) or ~P_1(x_13). forall x_13: W(x_13). Can we infer forall x_13: ~W(x_13) from them? If possible, name the inference rules being used at each step.
That contradicts the premises. Therefore the answer is no.