What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? It is not cold. If Karen were bored, then Joseph is working. Michael is an office clerk if and only if it is cold. Joseph is not working.
Karen is not bored. It is not cold and Joseph is not working. Joseph is not working and it is not cold. If Michael were an office clerk, then it is cold. If it is cold, then Michael is an office clerk. Michael is not an office clerk.