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: ~R_11(a_11). forall x_11: R_11(x_11) <-> S_11(x_11). p_2 -> S_11(a_11).
forall x_11: R_11(x_11) -> S_11(x_11) can be inferred via the universal biconditional elimination rule. forall x_11: S_11(x_11) -> R_11(x_11) can be inferred via the universal biconditional elimination rule.