{"product_id":"the-collected-papers-of-bertrand-russell-volume-5-toward-principia-mathematica-1905-08-9780415820981","title":"The Collected Papers of Bertrand Russell, Volume 5: Toward Principia Mathematica, 1905-08","description":"\u003cp\u003e • Author(s): Bertrand Russell\u003cbr\u003e • Publisher: Taylor \u0026amp; Francis\u003cbr\u003e • Publisher Imprint: Routledge\u003cbr\u003e • BISAC: History \u0026amp; Surveys - Modern\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eThis volume of Bertrand Russell's \u003cem\u003eCollected Papers\u003c\/em\u003e finds Russell focused on writing \u003cem\u003ePrincipia Mathematica\u003c\/em\u003e during 1905-08. Eight previously unpublished papers shed light on his different versions of a substitutional theory of logic, with its elimination of classes and relations, during 1905-06. A recurring issue for him was whether a type hierarchy had to be part of a substitutional theory. In mid-1907 he began writing up the final version of \u003cem\u003ePrincipia\u003c\/em\u003e, now using a ramified theory of types, and eleven unpublished drafts from 1907-08 deal with this. Numerous letters show his thoughts on the process.\u003c\/p\u003e\u003cp\u003eThe volume's 80-page introduction covers the evolution of his logic from 1896 until 1909, when volume I of \u003cem\u003ePrincipia \u003c\/em\u003ewent to the printer.\u003c\/p\u003e","brand":"Taylor \u0026 Francis","offers":[{"title":"Hardcover","offer_id":45236503937175,"sku":"9780415820981","price":30712.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3471\/1191\/files\/9780415820981.webp?v=1769213311","url":"https:\/\/atlanticbooks.com\/products\/the-collected-papers-of-bertrand-russell-volume-5-toward-principia-mathematica-1905-08-9780415820981","provider":"Atlantic Books","version":"1.0","type":"link"}