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: For all x_6, if x_6 were an artist, then x_6 is bored. For all x_6, x_6 is not a police officer. For all x_6, x_6 is a police officer or x_6 is not bored.
For all x_6, if x_6 were bored, then x_6 is a police officer can be inferred via the universal rewriting rule.