{"product_id":"naive-set-theory-9780486814872","title":"Naive Set Theory","description":"\u003cp\u003eClassic by prominent mathematician offers a concise introduction to set theory using language and notation of informal mathematics. Topics include the basic concepts of set theory, cardinal numbers, transfinite methods, more. 1960 edition.\u003c\/p\u003e","brand":"Paul R. Halmos","offers":[{"title":"Default Title","offer_id":56503365173590,"sku":"9780486814872","price":13.74,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/3206\/6390\/files\/9780486814872.jpg?v=1794002207","url":"https:\/\/www.englishbook.fi\/products\/naive-set-theory-9780486814872","provider":"Bookshop","version":"1.0","type":"link"}