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 z: T_3(z) <-> R(z). ~T_3(e_2) -> s. ~R(e_2).
forall z: T_3(z) -> R(z) can be inferred via the universal biconditional elimination rule. forall z: R(z) -> T_3(z) can be inferred via the universal biconditional elimination rule.