{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Frege and Gödel: Two Fundamental Texts in Mathematical Logic","author_name":"Jean van Heijenoort","thumbnail_url":"https://www.ebooknetworking.net/books/158/348/big1583485961.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1583485961.html\">Frege and Gödel: Two Fundamental Texts in Mathematical Logic</a>","width":400,"height":300}