What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x: U(x). forall x: Q(x). forall x: Q(x) -> R_2(x). exists x: T_2(x).
forall x: R_2(x). forall x: U(x) and Q(x). forall x: Q(x) and U(x). exists x: T_2(x) and U(x). exists x: T_2(x) and Q(x). exists x: U(x) and T_2(x). exists x: Q(x) and T_2(x).