{"version":"1.0","author_url":"https://blog.hatena.ne.jp/terai-s/","provider_name":"Hatena Blog","image_url":null,"height":"190","url":"https://terai-s.hatenadiary.org/entry/2024/02/05/025957","published":"2024-02-05 02:59:57","blog_title":"Cogito Ergo Sum.","title":"\u30ea\u30b9\u30c8\u5185\u5305\u8868\u8a18 2","author_name":"terai-s","categories":["\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0","\u30c0\u30a4\u30a2\u30ea\u30fc"],"type":"rich","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fterai-s.hatenadiary.org%2Fentry%2F2024%2F02%2F05%2F025957\" title=\"\u30ea\u30b9\u30c8\u5185\u5305\u8868\u8a18 2 - Cogito Ergo Sum.\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://terai-s.hatenadiary.org/","width":"100%","description":"\u5148\u65e5\u3001Haskell\u306e\u30ea\u30b9\u30c8\u3092\u51e6\u7406\u3059\u308b\u95a2\u6570\u3067\u30012\u3064\u306e\u30ea\u30b9\u30c8\u306e\u76f4\u7a4d\uff08direct product\uff09\u3092\u8fd4\u3059\u95a2\u6570\u3092\u63a2\u3057\u3066\u3044\u3066\u3001\u50d5\u306f\u898b\u3064\u3051\u3089\u308c\u306a\u304b\u3063\u305f\u3002\u4ed5\u65b9\u306a\u3044\u306e\u3067\u30ea\u30b9\u30c8\u5185\u5305\u8868\u8a18\u3067\u66f8\u3044\u305f\u3002 [(x, y) | x <- [0,1], y <- ['a','b']]--[(0,'a'),(0,'b'),(1,'a'),(1,'b')] \u5148\u65e5\u3001\u898b\u77e5\u3089\u306c\u4eba\u306e\u30d6\u30ed\u30b0\u3092\u898b\u3066\u3044\u3066\u3001\u6211\u304c\u76ee\u3092\u7591\u3063\u305f\u3002\u5168\u304f\u540c\u3058\u7d50\u679c\u3092\u8fd4\u3059\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u4f8b\u304c\u8a18\u3055\u308c\u3066\u3044\u305f\u306e\u3060\u3002 main = print ff = do x <- [0,1] y <- ['a','b'] return ((x, y))--[(0,'a'),(0,'b')\u2026"}