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_3: Q(x_3) -> T_2(x_3). forall x_3: ~P_3(x_3). forall x_3: P_3(x_3) <-> T_2(x_3).
forall x_3: P_3(x_3) -> T_2(x_3) can be inferred via the universal biconditional elimination rule. forall x_3: T_2(x_3) -> P_3(x_3) can be inferred via the universal biconditional elimination rule. forall x_3: ~T_2(x_3) can be inferred via the universal biconditional elimination rule.