What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x: P_2(x) -> T_2(x). forall x: T_2(x) <-> P(x). exists x: P(x) -> P_2(x).
exists x: P(x) -> T_2(x). forall x: T_2(x) -> P(x). forall x: P(x) -> T_2(x).