What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_9, x_9 is an artist if and only if x_9 is a mechanic. There is at least one x_9 for which if x_9 cooks, then x_9 is playing a game. For all x_9, x_9 will cook or x_9 is a mechanic. For all x_9, if x_9 plays a game, then x_9 is an artist.
There is at least one x_9 for which if x_9 cooks, then x_9 is an artist. For all x_9, if x_9 were an artist, then x_9 is a mechanic. For all x_9, if x_9 were a mechanic, then x_9 is an artist.