{"type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Flethevert.hatenadiary.org%2Fentry%2F20060628%2Fp2\" title=\"Concurrent Clean : \u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u3068\u30ac\u30fc\u30c9 - lethevert is a programmer\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","url":"https://lethevert.hatenadiary.org/entry/20060628/p2","width":"100%","title":"Concurrent Clean : \u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u3068\u30ac\u30fc\u30c9","categories":["\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"image_url":null,"provider_url":"https://hatena.blog","blog_title":"lethevert is a programmer","published":"2006-06-28 00:00:02","blog_url":"https://lethevert.hatenadiary.org/","description":"Types and Programming Languages (The MIT Press)\u306eP.47\u3042\u305f\u308a\u3067\u3001\u3053\u3093\u306a\u95a2\u6570\u5b9a\u7fa9\u304c\u3042\u3063\u3066\u3001 let rec isval t = match t with TmTrue(_) -> true | TmFalse(_) -> true | t when isnumerical t -> true | _ -> false\"when\"\u3063\u3066\u4fbf\u5229\u305d\u3046\u306a\u30ad\u30fc\u30ef\u30fc\u30c9\u3060\u306a\u30fc\u3068\u304b\u3068\u307c\u3051\u3063\u3068\u8003\u3048\u3066\u3044\u305f\u3089\u3001Clean\u3067\u306f\u3082\u3063\u3068\u7c21\u6f54\u306b\u66f8\u3051\u308b\u306e\u3060\u3063\u305f\u3068\u3044\u3046\u3053\u3068\u3092\u601d\u3044\u51fa\u3057\u305f\u3002 \u3067\u3001\u8d70\u308a\u66f8\u304d\u3057\u305f\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3002 g t = case t of A a | a > 0 = Tru\u2026","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/lethevert/","version":"1.0","author_name":"lethevert"}