{"image_url":"http://cdn-ak.f.st-hatena.com/images/fotolife/b/bitterharvest/20140915/20140915060758.png","categories":["Haskell\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8b1b\u5ea7\uff08\u4e2d\u7d1a\u7de8\uff09"],"published":"2014-09-15 07:13:24","title":"Haskell\u306e\u771f\u9ac4\u306b\u8feb\u308b - \u4e00\u822c\u5316\u4ee3\u6570\u7684\u30c7\u30fc\u30bf\uff08\uff15\uff09","blog_url":"https://bitterharvest.hatenablog.com/","type":"rich","width":"100%","version":"1.0","height":"190","description":"\uff11\uff0e\u7c73\u7530\u306e\u88dc\u984c \u570f\u8ad6\u306e\u91cd\u8981\u306a\u6982\u5ff5\u306e\u3072\u3068\u3064\u306b\u7c73\u7530\u306e\u88dc\u984c\u304c\u3042\u308b\u3002\u3053\u308c\u306f\u6b21\u3067\u8868\u3055\u308c\u308b\u3002\\({\\mathcal C}\\)\u3092\u570f\u3068\u3057\u305f\u6642\u3001\u4efb\u610f\u306e\\({\\mathcal C}\\)\u306e\u5bfe\u8c61\\(A\\)\u3068\u95a2\u624b\\(F: {\\mathcal C} \\rightarrow {\\bf Sets}\\)\u306b\u5bfe\u3057\u3066 \\({\\rm Nat}({\\rm Hom}(A,-),F) \\cong F(A)\\) \u3067\u3042\u308b\u3002\u3055\u3089\u306b\u3001\u3053\u306e\u540c\u578b\\(\\cong\\)\u306f\u3001\\(F\\)\u3068\\(A\\)\u306b\u5bfe\u3057\u3066\u81ea\u7136\u3067\u3042\u308b\u3002 \uff12\uff0e\u81ea\u7136\u5909\u63db \\({\\rm Hom}(A,-)\\)\u304c\u95a2\u624b\u3067\u3042\u308b\u3053\u3068\u304c\u3001\u524d\u306e\u8aac\u660e\u3067\u5206\u304b\u3063\u305f\u306e\u3067\u3001\u6b21\u306f\u3001\\({\\rm Nat}\\)\u3068\u8a18\u3055\u308c\u305f\u81ea\u7136\u5909\u63db\u2026","url":"https://bitterharvest.hatenablog.com/entry/2014/09/15/071324","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbitterharvest.hatenablog.com%2Fentry%2F2014%2F09%2F15%2F071324\" title=\"Haskell\u306e\u771f\u9ac4\u306b\u8feb\u308b - \u4e00\u822c\u5316\u4ee3\u6570\u7684\u30c7\u30fc\u30bf\uff08\uff15\uff09 - bitterharvest\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"bitterharvest\u2019s diary","author_name":"bitterharvest","author_url":"https://blog.hatena.ne.jp/bitterharvest/"}