What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_8 for which x_8 is a writer or x_8 is not an artist. For all x_8, x_8 is a writer if and only if x_8 is an artist.
There is at least one x_8 for which if x_8 were an artist, then x_8 is a writer. For all x_8, if x_8 were a writer, then x_8 is an artist. For all x_8, if x_8 were an artist, then x_8 is a writer.