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_3(y_4). exists y_4: T(y_4) -> ~S_3(y_4). forall y_4: W(y_4).
exists y_4: ~T(y_4) can be inferred via the existential modus tollens rule. forall y_4: S_3(y_4) and W(y_4) can be inferred via the universal conjunction rule. forall y_4: W(y_4) and S_3(y_4) can be inferred via the universal conjunction rule.