What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_2 for which x_2 will read a book if and only if x_2 will work. For all x_2, x_2 will read a book or x_2 will not work.
For all x_2, if x_2 works, then x_2 is reading a book. There is at least one x_2 for which if x_2 reads a book, then x_2 is working. There is at least one x_2 for which if x_2 works, then x_2 is reading a book.