What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Joseph is a nurse. Linda is a police officer. If it is cloudy, then Joseph is not a nurse. If Susan were poor, then it is cloudy.
It is not cloudy. If Susan were poor, then Joseph is not a nurse. Joseph is a nurse and Linda is a police officer. Linda is a police officer and Joseph is a nurse.