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: s_3 <-> R_1(a_14). forall y: ~R_1(y).
s_3 -> R_1(a_14) can be inferred via the biconditional elimination rule. R_1(a_14) -> s_3 can be inferred via the biconditional elimination rule.