Consider the following premises. forall x_13: ~Q_13(x_13). forall x_13: Q_13(x_13) -> P_13(x_13). forall x_13: P_13(x_13) -> Q_13(x_13). u or P_13(j). ~u or s. Can we infer p from them? If possible, name the inference rules being used at each step.
We cannot infer that from the premises. Therefore the answer is no.