{"product_id":"principia-mathematica-volume-one-9781603861823","title":"Principia Mathematica - Volume One","description":"\u003cp\u003eAn Unabridged, Unaltered Printing Of Volume I of III: Part I - MATHEMATICAL LOGIC - The Theory Of Deduction - Theory Of Apparent Variables - Classes And Relations - Logic And Relations - Products And Sums Of Classes - Part II - PROLEGOMENA TO CARDINAL ARITHMETIC - Unit Classes And Couples - Sub-Classes, Sub-Relations, And Relative Types - One-Many, Many-One, And One-One Relations - Selections - Inductive Relations\u003c\/p\u003e\u003cbr\u003e","brand":"Merchant Books","offers":[{"title":"Default Title","offer_id":50643459834130,"sku":"9781603861823","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_a067c0fe-8532-48f5-bea9-f2e0df7ede08.jpg?v=1733086181","url":"https:\/\/surprise-castle.myshopify.com\/products\/principia-mathematica-volume-one-9781603861823","provider":"Surprise Castle","version":"1.0","type":"link"}