What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? q_1 -> q_4. forall x_13: R_2(x_13) <-> Q_13(x_13). Q_13(a_10) -> q_1.
Q_13(a_10) -> q_4. forall x_13: R_2(x_13) -> Q_13(x_13). forall x_13: Q_13(x_13) -> R_2(x_13).