What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_7, x_7 will sleep if and only if x_7 will go running. It is windy if and only if it is late. Sarah is running if and only if it is late. It is not windy.
If it is windy, then it is late. If Sarah goes running, then it is late. If it is late, then it is windy. If it is late, then Sarah is running. It is not late. For all x_7, if x_7 sleeps, then x_7 is running. For all x_7, if x_7 goes running, then x_7 is sleeping.