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: P_14(a_10) or ~u_3. Q_14(a_10) or u_3. forall x_14: P_14(x_14) <-> Q_14(x_14).
u_3 -> P_14(a_10) can be inferred via the rewriting rule. forall x_14: P_14(x_14) -> Q_14(x_14) can be inferred via the universal biconditional elimination rule. forall x_14: Q_14(x_14) -> P_14(x_14) can be inferred via the universal biconditional elimination rule.