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_4: Q_1(z_4) <-> R_4(z_4). forall z_4: Q_1(z_4) <-> S(z_4). forall z_4: ~R_4(z_4).
forall z_4: Q_1(z_4) -> R_4(z_4) can be inferred via the universal biconditional elimination rule. forall z_4: Q_1(z_4) -> S(z_4) can be inferred via the universal biconditional elimination rule. forall z_4: R_4(z_4) -> Q_1(z_4) can be inferred via the universal biconditional elimination rule. forall z_4: S(z_4) -> Q_1(z_4) can be inferred via the universal biconditional elimination rule. forall z_4: ~Q_1(z_4) can be inferred via the universal biconditional elimination rule.