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_14: ~R_14(x_14). u <-> R_14(h).
u -> R_14(h) can be inferred via the biconditional elimination rule. R_14(h) -> u can be inferred via the biconditional elimination rule.