What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Michael is a soldier or Michael is not a cashier. Joseph is not a sailor or Michael is a cashier. Michael is a soldier if and only if it is windy. Joseph is a sailor or it is windy.
It is windy or Michael is a cashier. If Michael were a cashier, then Michael is a soldier. If Michael were a soldier, then it is windy. If it is windy, then Michael is a soldier.