{"published":"2013-07-25 00:16:24","blog_url":"https://blog.3qe.us/","width":"100%","blog_title":"Lambda\u30ab\u30af\u30c6\u30eb","type":"rich","provider_name":"Hatena Blog","author_name":"Windymelt","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.3qe.us%2Fentry%2F20130725%2F1374765384\" title=\"Free\u30e2\u30ca\u30c9\u3068\u4e0d\u52d5\u70b9\u30b3\u30f3\u30d3\u30cd\u30fc\u30bf - Lambda\u30ab\u30af\u30c6\u30eb\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/Windymelt/","title":"Free\u30e2\u30ca\u30c9\u3068\u4e0d\u52d5\u70b9\u30b3\u30f3\u30d3\u30cd\u30fc\u30bf","height":"190","description":"Free\u30e2\u30ca\u30c9\u3092\u898b\u3066\u3044\u305f\u3089\u3001\u3053\u308c\u3063\u3066\u3069\u3053\u304b\u3067\u898b\u305f\u4e8b\u304c\u3042\u308b\u3088\u3046\u306a\u6c17\u304c\u3059\u308b...\u305d\u3046\uff01\u4e0d\u52d5\u70b9\u30b3\u30f3\u30d3\u30cd\u30fc\u30bf\u3067\u3059\uff01\uff01\uff01 Free\u30e2\u30ca\u30c9\uff1a Free f a := Pure a | Free (f (Free f a)) \u4e0d\u52d5\u70b9\u30b3\u30f3\u30d3\u30cd\u30fc\u30bf\uff1a Fix f := f(Fix f) Free\u3084Fix\u304c\u5185\u5bb9\u3092\u5305\u3080\u5f62\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u306d\u3002\u3061\u3087\u3063\u3068\u751f\u534a\u53ef\u306a\u77e5\u8b58\u3067\u8abf\u3079\u3066\u307f\u305f\u3068\u3053\u308d\u4ee5\u4e0b\u306b\u3088\u3046\u306a\u4e8b\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002Free\u3068Fix\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u3002 \u30fbFree\u306f>>=\u306b\u3088\u308b\u81ea\u7136\u306a\u62e1\u5f35\u304c\u884c\u3048\u308b\u304cFix\u306b\u306f\u3067\u304d\u306a\u3044\uff08\u9762\u5012\uff09 \u30fbFree\u306fPure\u306e\u5b58\u5728\u306b\u3088\u308a\u7d42\u70b9\u304c\u5fc5\u305a\u5b58\u5728\u3059\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u308b\u304cFix\u306e\u5834\u5408\u305d\u3046\u3067\u306f\u306a\u3044\uff08Fix(ide\u2026","image_url":null,"categories":["haskell","monad"],"url":"https://blog.3qe.us/entry/20130725/1374765384"}