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_8, x_8 is not a politician or x_8 will read a book. Mary is not reading a book. Mary is not an artist or Karen is bored. For all x_8, x_8 is a politician or x_8 is an artist.
For all x_8, x_8 is an artist or x_8 will read a book can be inferred via the universal resolution rule.