{"product_id":"9780198945543","title":"The Definition of Logical Validity","description":"\u003cp\u003eWhat does it mean for a conclusion to follow logically from other sentences? Logical consequence is at the basis of any rational reasoning. Textbooks generally give a precise and formal account of logical consequence, but rarely provide a justification for this account. In this monograph the foundations of logical consequence are examined.\u003c\/p\u003e","brand":"Oxford University Press","offers":[{"title":"Default Title","offer_id":48228943888619,"sku":"00000_00000_00000_00000","price":183.12,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/4484\/5803\/files\/9780198945543-1.jpg?v=1781612191","url":"https:\/\/kinokuniya.com.sg\/zh\/products\/9780198945543","provider":"Books Kinokuniya Singapore","version":"1.0","type":"link"}