Butler leased a certain piece of property from Wheeler with an option to purchase it at a later date. The agreement was handwritten and consisted of two separate documents, each listing part of the transaction. Butler later attempted to purchase the property but Wheeler refused to sell, claiming that the agreement was unenforceable because it was contained in two documents. Was Wheeler correct? Explain. Butler v. Lovoll, 620 P.2d 1251 (NV).