{"title":"\u570f\u8ad6\u306f\u5c04\u304b\u3089","author_url":"https://blog.hatena.ne.jp/bitterharvest/","author_name":"bitterharvest","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbitterharvest.hatenablog.com%2Fentry%2F2016%2F10%2F11%2F130846\" title=\"\u570f\u8ad6\u306f\u5c04\u304b\u3089 - 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>","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/b/bitterharvest/20161011/20161011120648.png","blog_title":"bitterharvest\u2019s diary","description":"\uff12\uff0e\uff12 \u5c04 \u570f\u8ad6\u306e\u4e2d\u3067\u4e00\u756a\u91cd\u8981\u306a\u5f79\u5272\u3092\u62c5\u3046\u306e\u306f\u5c04(arrow\u3042\u308b\u3044\u306fmorphism)\u3067\u3042\u308b\u3002\u5c04\u306f\u5bfe\u8c61\u3092\u5bfe\u8c61\u3078\u3068\u79fb\u3059\uff08\u5199\u50cf\u3068\u3044\u3046\u7528\u8a9e\u3092\u4f7f\u3063\u305f\u3068\u304d\u306f\u300c\u5199\u3059\u300d\u3068\u3044\u3063\u305f\u307b\u3046\u304c\u3088\u3055\u305d\u3046\u3060\u304c\u3001\u5c04\u306f\u77e2\u3092\u5c04\u308b\u3068\u3044\u3046\u610f\u5473\u3067\u7528\u3044\u3066\u3044\u308b\u306e\u3067\u300c\u79fb\u3059\u300d\u3068\u3044\u3046\u6f22\u5b57\u3092\u4f7f\u3046\uff09\u3002\u5c04\u306f\u3001\u4ed6\u306e\u5206\u91ce\u3067\u306f\u5199\u50cf\u3068\u547c\u3070\u308c\u305f\u308a\u3001\u95a2\u6570\u3068\u547c\u3070\u308c\u305f\u308a\u3059\u308b\u3002\u3057\u304b\u3057\u3001\u570f\u8ad6\u3067\u306f\u3001\u5199\u50cf\u3084\u95a2\u6570\u306e\u6982\u5ff5\u3092\u62bd\u8c61\u5316\u3057\u3066\u7528\u3044\u308b\u306e\u3067\u3001\u5c04\u3068\u3044\u3046\u7279\u5225\u306a\u7528\u8a9e\u3092\u7528\u3044\u308b\u3002 \uff11\uff09\u5c04\u3068\u306f \u5c04\\(f\\)\u306f\u3001\\(f:A \\rightarrow B\\)\u3068\u8a18\u8ff0\u3055\u308c\u308b\u3002\\(A,B\\)\u306f\u5bfe\u8c61\u3067\u3001\\(A\\)\u3092\u30c9\u30e1\u30a4\u30f3(domain)\u3001\\(B\\)\u306f\u30b3\u30c9\u30e1\u30a4\u30f3(codomain)\u3068\u547c\u3070\u308c\u308b\u3002\u307e\u305f\u3001\u2026","provider_url":"https://hatena.blog","version":"1.0","published":"2016-10-11 13:08:46","width":"100%","height":"190","categories":["\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u306e\u305f\u3081\u306e\u570f\u8ad6 (\u521d\u7d1a\u7de8\uff1a\u570f\u8ad6\u3068Haskell)"],"blog_url":"https://bitterharvest.hatenablog.com/","url":"https://bitterharvest.hatenablog.com/entry/2016/10/11/130846","type":"rich"}