{"description":"\u3075\u3068\u9ad8\u6821\u6642\u4ee3\u306e\u6570\u5b66\u306e\u5148\u751f\u306e\u8a00\u8449\u3092\u601d\u3044\u51fa\u3057\u305f\u3002 \u9f8d\u6a39\u83e9\u85a9\u306e\u8a00\u3063\u3066\u308b\u3053\u3068\u304c\u306a\u3093\u3068\u306a\u304f\u5206\u304b\u3063\u305f\u3088\u3046\u306a\u6c17\u304c\u3057\u305f\u3002 \u300cx > 0\u300d\u306e\u5426\u5b9a\u306f\uff1f \u3068\u805e\u304b\u308c\u308b\u3068\u300cx \u3067\u3082\u305d\u308c\u306f\u300cx \u2208 R\u300d\u306a\u3089\u3070\u306e\u8a71\u3060\u3002 \u3082\u3057\u300cx \u2208 C\u300d\u3067\u3042\u3063\u305f\u306a\u3089\u3001\u300cx > 0\u300d\u3068\u3044\u3046\u547d\u984c\u305d\u306e\u3082\u306e\u304c\u7121\u610f\u5473\u3060\u3002 \u300cx > 0\u300d\u3068\u8a00\u3063\u305f\u6642\u70b9\u3067\u300cx \u2208 R\u300d\u3068\u3044\u3046\u300c\u504f\u898b\u300d\u304c\u751f\u307e\u308c\u30012\u3064\u306e\u96c6\u5408\u304c\u60f3\u8d77\u3055\u308c\u308b\u3002 A = { x \u2208 R | x > 0 } B = ~A = { x \u2208 R | x \u3057\u304b\u3057\u3001x = i \u3060\u3063\u305f\u306a\u3089\u3001x \u306f A,B \u3044\u305a\u308c\u306b\u3082\u5c5e\u3055\u306a\u3044\u3002 \u300e\u4e2d\u8ad6\u300f\u306b\u304a\u3044\u3066\u9f8d\u6a39\u83e9\u85a9\u306e\u8a00\u308f\u3093\u3068\u3059\u308b\u6240\u306f\u305d\u3046\u3044\u3046\u3053\u3068\u3067\u306f\u306a\u3044\u304b\u306a\uff1f \u3042\u308b\u547d\u984c\u304c\u6697\u9ed9\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Flipoyang.hatenablog.com%2Fentry%2F20100502\" title=\"\u305d\u3053\u3089\u306e\u866b\u3082\u88dc\u96c6\u5408 - \u6ef4\u4e86\u5eb5\u65e5\u9332\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","author_url":"https://blog.hatena.ne.jp/licheng/","published":"2010-05-02 00:00:00","provider_name":"Hatena Blog","version":"1.0","title":"\u305d\u3053\u3089\u306e\u866b\u3082\u88dc\u96c6\u5408","categories":[],"image_url":null,"author_name":"licheng","type":"rich","url":"https://lipoyang.hatenablog.com/entry/20100502","blog_url":"https://lipoyang.hatenablog.com/","blog_title":"\u6ef4\u4e86\u5eb5\u65e5\u9332","height":"190","provider_url":"https://hatena.blog"}