Consider the following premises. forall y: S(y) -> Q_13(y). forall y: W(y) or S(y). forall y: Q_13(y) -> S(y). forall y: Q_13(y) <-> W(y). Can we infer Q(a) 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.