What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: forall z: W(z) -> Q(z). forall z: W(z) or ~Q(z). exists z: ~Q(z).
exists z: ~W(z) can be inferred via the existential modus tollens rule. forall z: Q(z) -> W(z) can be inferred via the universal rewriting rule.