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_6 for which x_6 is not a police officer. For all x_6, x_6 is a carpenter or x_6 is not a writer. For all x_6, if x_6 were a carpenter, then x_6 is a police officer.
There is at least one x_6 for which x_6 is not a carpenter. For all x_6, if x_6 were a writer, then x_6 is a carpenter.