{"product_id":"collected-papers-of-bertrand-russell-volume-5-hardback","title":"Collected Papers of Bertrand Russell, Volume 5 - Hardback","description":"\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 Eight previously unpublished papers shed light on his different versions of a substitutional theory of logic, with its elimination of classes and relations, during 1905-06.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up the final version of \u003cem\u003ePrincipia\u003c\/em\u003e, now using a ramified theory of types, and eleven unpublished drafts from 1907-08 deal with this.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":"Default Title","offer_id":45599774146798,"sku":"9780415820981","price":546.4,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/9612\/7726\/files\/9780415820981.jpg?v=1721458503","url":"https:\/\/bookland.com.au\/products\/collected-papers-of-bertrand-russell-volume-5-hardback","provider":"Book Land AU","version":"1.0","type":"link"}