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 y_4: S_2(y_4) -> W(y_4). forall y_4: Q(y_4) or ~W(y_4). exists y_4: W_1(y_4) -> S_2(y_4).
exists y_4: W_1(y_4) -> W(y_4) can be inferred via the existential transitivity rule. forall y_4: W(y_4) -> Q(y_4) can be inferred via the universal rewriting rule.