What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x: P_4(x) -> T_1(x). forall x: T_1(x) -> R(x). exists x: R_2(x) -> P_4(x). forall x: R(x) -> Q(x).
forall x: P_4(x) -> R(x). forall x: T_1(x) -> Q(x). exists x: R_2(x) -> T_1(x).