{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Formal Logic: Or, The Calculus of Inference, Necessary and Probable","author_name":"Augustus De Morgan","thumbnail_url":"https://www.ebooknetworking.net/books/140/210/big1402100728.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1402100728.html\">Formal Logic: Or, The Calculus of Inference, Necessary and Probable</a>","width":400,"height":300}