What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If it is cloudy, then Jessica is bored. For all x_9, x_9 is a cashier if and only if x_9 is bored.
For all x_9, if x_9 were a cashier, then x_9 is bored. For all x_9, if x_9 were bored, then x_9 is a cashier.