What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all z, if z were bored, then z is climbing a mountain. It is not windy. Joseph is climbing a mountain if and only if it is windy.
If Joseph climbs a mountain, then it is windy. If it is windy, then Joseph is climbing a mountain. Joseph is not climbing a mountain.