{"blog_title":"Arantium Maestum","title":"\u578b\u63a8\u8ad6\u3092\u5b9f\u88c5\u3059\u308b\u3000\u305d\u306e\uff12\u3000\uff08\u578b\u691c\u67fb\u306e\u3042\u308b\u8a00\u8a9e\u3092\u4f5c\u308b\uff09","image_url":null,"version":"1.0","height":"190","provider_url":"https://hatena.blog","width":"100%","author_url":"https://blog.hatena.ne.jp/zehnpaard/","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fzehnpaard.hatenablog.com%2Fentry%2F2019%2F06%2F25%2F185155\" title=\"\u578b\u63a8\u8ad6\u3092\u5b9f\u88c5\u3059\u308b\u3000\u305d\u306e\uff12\u3000\uff08\u578b\u691c\u67fb\u306e\u3042\u308b\u8a00\u8a9e\u3092\u4f5c\u308b\uff09 - Arantium Maestum\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"zehnpaard","published":"2019-06-25 18:51:55","url":"https://zehnpaard.hatenablog.com/entry/2019/06/25/185155","categories":["Essentials of Programming Languages","OCaml","\u8a00\u8a9e\u51e6\u7406\u7cfb"],"provider_name":"Hatena Blog","description":"\u524d\u56de\u767b\u5834\u3057\u305fLETREC\u8a00\u8a9e\u306b\u578b\u6ce8\u91c8\u3068\u578b\u691c\u67fb\u3092\u3064\u3051\u305fCHECKED\u8a00\u8a9e\u3092\u5b9f\u88c5\u3059\u308b\u3002 github.com \u5177\u4f53\u7684\u306b\u306f\u7121\u540d\u95a2\u6570\u3092\u5b9a\u7fa9\u3059\u308bproc\u306e\u4eee\u5f15\u6570\u3001\u518d\u5e30\u95a2\u6570\u3092\u5b9a\u7fa9\u3059\u308bletrec\u306e\u4eee\u5f15\u6570\u3068\u623b\u308a\u5024\u306b\u5bfe\u3057\u3066\u578b\u6ce8\u91c8\u3092\u5fc5\u8981\u3068\u3057\u3001\u305d\u306e\u60c5\u5831\u3092\u5143\u306b\u578b\u691c\u67fb\u3059\u308b\u3002 \u578b CHECKED\u3067\u4f7f\u3046\u578b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\uff1a type t = Int | Bool | Proc of t * t \u6574\u6570\u3068\u771f\u507d\u3068\u3001\u3042\u3068\u306f\u4efb\u610f\u306e\u4e8c\u3064\u306e\u578b\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u95a2\u6570\u306e\u305f\u3081\u306e\u518d\u5e30\u578b\u3002\u5f8c\u8005\u306f\u30cd\u30b9\u30c8\u304c\u53ef\u80fd\u3067(Bool -> Bool) -> Int\u306a\u3069\u3068\u3044\u3063\u305f\u578b\u3092\u4f5c\u3063\u305f\u308a\u3067\u304d\u308b\u3002 \u578b\u6ce8\u91c8\u306e\u8a18\u8ff0\u306f\u3053\u3093\u306a\u611f\u3058\uff1a letrec int do\u2026","blog_url":"https://zehnpaard.hatenablog.com/"}