{"provider_name":"Hatena Blog","image_url":null,"categories":["Coq"],"version":"1.0","type":"rich","provider_url":"https://hatena.blog","width":"100%","author_url":"https://blog.hatena.ne.jp/chiguri_s/","description":"\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u304c\u3067\u304d\u308b\u3063\u3066\u3053\u3068\u306f\u3001extraction\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3042\u308b\u3002 singleton definition\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u306e\u5834\u5408\u3001\u5b9f\u306f\u975e\u5e38\u306b\u7c21\u5358\u3067\u3001\u305d\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u81ea\u4f53\u304c\u6d88\u3048\u3066\u3001\u7d50\u679c\u3060\u3051\u304c\u6b8b\u308b\u3002 \u4e00\u65b9\u3001empty definition\u306f\u305d\u3046\u3082\u884c\u304b\u306a\u3044\u3002\u305d\u3082\u305d\u3082Coq\u306eterm\u4e0a\u306f\u5206\u5c90\u304c\u306a\u3044\u306e\u3060\u3002 \u3057\u304b\u3082False\u81ea\u4f53\u306f\u8ff0\u8a9e\u306a\u306e\u3067\u6d88\u3048\u308b\u904b\u547d\u306b\u3042\u308b\u3002 \u3067\u306f\u3069\u3046\u306a\u308b\u306e\u304b\uff1f \u7d50\u679c\u306f\u3053\u308c\u307e\u305f\u7c21\u5358\u3001assert\uff08\u3084\u305d\u308c\u306b\u985e\u3059\u308b\u3082\u306e\uff09\u3092\u4f7f\u3063\u3066\u7570\u5e38\u72b6\u614b\u3067\u3042\u308b\u3053\u3068\u3092\u77e5\u3089\u305b\u308b\u3002 \u306a\u305c\u306a\u3089\u3001\u691c\u8a3c\u3057\u305f\u7d50\u679c\u3068\u3057\u3066\u306f\u305d\u3053\u306b\u6765\u308b\u3053\u3068\u3092\u60f3\u5b9a\u3057\u3066\u3044\u306a\u3044\u308f\u3051\u3060\u304b\u3089\u3002 \u3068\u3044\u3046\u308f\u3051\u3067\u3001\u3053\u308c\u3067extraction\u3082\u53ef\u80fd\u2026","blog_url":"https://chiguri-s.hatenadiary.org/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fchiguri-s.hatenadiary.org%2Fentry%2F20120323%2F1332515454\" title=\"\u88dc\u8db3\uff1aFalse\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u306eextraction - chiguri\u306e\u751f\u614b\uff08\u5618\u3084\u8a87\u5f35\u30a2\u30ea\uff09\" 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":"chiguri_s","title":"\u88dc\u8db3\uff1aFalse\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u306eextraction","published":"2012-03-23 00:10:54","url":"https://chiguri-s.hatenadiary.org/entry/20120323/1332515454","blog_title":"chiguri\u306e\u751f\u614b\uff08\u5618\u3084\u8a87\u5f35\u30a2\u30ea\uff09","height":"190"}