Consider the following premises. forall x_10: W_4(x_10) -> Q_10(x_10). Q_10(a_5) -> r. forall x_10: Q_10(x_10) -> W_4(x_10). Can we infer ~(W_4(a_5) -> r) from them? If possible, name the inference rules being used at each step.
That contradicts the premises. Therefore the answer is no.