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: R_3(x) -> Q(x). forall x: W_1(x) -> Q_4(x). forall x: W(x) -> R_3(x). exists x: Q_4(x) -> W(x).
forall x: W(x) -> Q(x) can be inferred via the universal transitivity rule. exists x: Q_4(x) -> R_3(x) can be inferred via the existential transitivity rule. exists x: W_1(x) -> W(x) can be inferred via the existential transitivity rule.