What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_7, x_7 will play tennis or x_7 will read a book. For all x_7, x_7 will take a plane. There is at least one x_7 for which x_7 will not play tennis.
There is at least one x_7 for which x_7 will read a book.