What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If it is cloudy, then Michael is taking a plane. Mary is not a server. Michael is taking a plane if and only if Linda is reading a book. If Linda reads a book, then Mary is a server.
Linda is not reading a book. If Michael takes a plane, then Linda is reading a book. If Linda reads a book, then Michael is taking a plane.