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 x: Q_4(x) -> Q(x). exists x: T(x) -> Q_4(x). forall x: Q(x) -> T(x).
forall x: Q_4(x) -> T(x) can be inferred via the universal transitivity rule. exists x: T(x) -> Q(x) can be inferred via the existential transitivity rule. exists x: Q(x) -> Q_4(x) can be inferred via the existential transitivity rule.