What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y_4, y_4 will read a book if and only if y_4 will play a game. If James plays a game, then James is reading a book.
For all y_4, if y_4 reads a book, then y_4 is playing a game. For all y_4, if y_4 plays a game, then y_4 is reading a book.