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: u_3 <-> S_10(a). forall x_10: R_10(x_10) -> S_10(x_10).
u_3 -> S_10(a) can be inferred via the biconditional elimination rule. S_10(a) -> u_3 can be inferred via the biconditional elimination rule.