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: r -> P_7(a_5). r or Q_7(a_5). forall x_7: P_7(x_7) or ~Q_7(x_7).
R_1(a_5) -> r can be inferred via the rewriting rule. forall x_7: Q_7(x_7) -> P_7(x_7) can be inferred via the universal rewriting rule.