{"provider_name":"Hatena Blog","blog_url":"https://morita-non.hatenadiary.org/","title":"id","url":"https://morita-non.hatenadiary.org/entry/20140221/1392992629","version":"1.0","blog_title":"memo","provider_url":"https://hatena.blog","published":"2014-02-21 23:23:49","author_name":"morita_non","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmorita-non.hatenadiary.org%2Fentry%2F20140221%2F1392992629\" title=\"id - memo\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"id\u95a2\u6570 \u4efb\u610f\u306e\u578b A \u306e\u5f15\u6570\u3092\u3068\u308a\u3001\u305d\u308c\u81ea\u8eab\u3092\u8fd4\u3059\u95a2\u6570Coq\u306f\u3001 \u5909\u6570\u540d : \u578b \u306e\u9806\u5e8f\u3067\u3044\u308d\u3044\u308d\u5ba3\u8a00\u3059\u308b\u3002\u5909\u6570\u3082\u3001\u95a2\u6570\u306e\u5f15\u6570\u3082\u3002 \u4e00\u756a\u6700\u521d\u306e\u3082\u306e\u3002http://www.iij-ii.co.jp/lab/techdoc/coqt/coqt1.html Definition id (A : Type) (x : A) : A := x.\u578b\u5f15\u6570A (A:Type) \u3068\u578bA\u306e\u5909\u6570x(x:A)\u3092\u5f15\u6570\u306b\u53d6\u308b\u95a2\u6570\u3067A\u578b\u3092\u8fd4\u5374\u3059\u308b\u3002(: A)\u305d\u306e\u672c\u4f53\u306f\u3001:=\u3067\u5b9a\u7fa9\u3055\u308c\u3001\u672c\u4f53\u306f\u3001x\u5b9f\u884c Eval compute in id nat 10. (* => 10. *)Coq\u306f\u578b\u63a8\u8ad6\u304c\u3042\u308a\u3001(x : A)\u3067\u5ba3\u8a00\u3055\u2026","author_url":"https://blog.hatena.ne.jp/morita_non/","type":"rich","height":"190","image_url":null,"categories":[],"width":"100%"}