What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_6, if x_6 cooks, then x_6 is playing tennis. For all x_6, if x_6 were a musician, then x_6 is cooking. For all x_6, x_6 is a musician if and only if x_6 will play tennis.
For all x_6, if x_6 were a musician, then x_6 is playing tennis. For all x_6, if x_6 were a musician, then x_6 is playing tennis. For all x_6, if x_6 plays tennis, then x_6 is a musician.