Consider the following premises. forall x_15: P_15(x_15) -> Q(x_15). forall x_15: Q(x_15) -> P_15(x_15). P_15(a_10) -> p. p -> Q(a_10). Can we infer ~(Q(a_10) <-> p) from them? If possible, name the inference rules being used at each step.
That contradicts the premises. Therefore the answer is no.