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: T_2(a_12) -> R_10(a_10). forall y_4: P_1(y_4) <-> T_2(y_4). forall x_10: ~R_10(x_10).
forall y_4: P_1(y_4) -> T_2(y_4) can be inferred via the universal biconditional elimination rule. forall y_4: T_2(y_4) -> P_1(y_4) can be inferred via the universal biconditional elimination rule.