What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Karen is not sleeping. For all y_4, y_4 is fast if and only if y_4 will sleep. If Karen sleeps, then Karen is fast.
For all y_4, if y_4 were fast, then y_4 is sleeping. For all y_4, if y_4 sleeps, then y_4 is fast.