{"title":"\u30db\u30e0\u30bb\u30c3\u30c8\u306f\u4ea4\u308f\u308b\u306e\u304b","author_name":"m-hiyama","categories":["\u96d1\u8a18\uff0f\u5099\u5fd8"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fm-hiyama.hatenablog.com%2Fentry%2F20180409%2F1523240700\" title=\"\u30db\u30e0\u30bb\u30c3\u30c8\u306f\u4ea4\u308f\u308b\u306e\u304b - \u6a9c\u5c71\u6b63\u5e78\u306e\u30ad\u30de\u30a4\u30e9\u98fc\u80b2\u8a18 (\u306f\u3066\u306aBlog)\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","height":"190","author_url":"https://blog.hatena.ne.jp/m-hiyama/","image_url":null,"provider_url":"https://hatena.blog","description":"C\u304c\u570f\u306e\u3068\u304d\u3001A, B, C, D\u2208|C| \u3068\u3057\u3066\u3001\u30db\u30e0\u30bb\u30c3\u30c8\u306e\u5171\u901a\u90e8\u5206 C(A, B)\u2229C(C, D) \u306f\u3044\u3063\u305f\u3044\u3069\u3046\u306a\u3063\u3066\u3093\u3067\u3057\u3087\u3046\uff1f\u5185\u5bb9\uff1a dom/cod\u3092\u4f7f\u3063\u305f\u5b9a\u7fa9\u3067\u306f \u96c6\u5408\u570f\u4e0a\u306e\u8c4a\u9952\u570f\u3068\u3057\u3066\u306f \u7c73\u7530\u57cb\u3081\u8fbc\u307f\u3078\u306e\u5f71\u97ff \u305f\u3044\u3057\u305f\u554f\u984c\u3067\u306f\u306a\u3044 dom/cod\u3092\u4f7f\u3063\u305f\u5b9a\u7fa9\u3067\u306ff\u2208C(A, B)\u2229C(C, D) \u3068\u3059\u308b\u3068\uff1a dom(f) = A \u304b\u3064 cod(f) = B dom(f) = C \u304b\u3064 cod(f) = D \u306a\u306e\u3067\u3001 dom(f) = A = C cod(f) = B = D \u3068\u306a\u308b\u306e\u3067\u3001 C(A, B)\u2229C(C, D) \u304c\u7a7a\u3067\u306a\u3044\u306a\u3089\u3070\u3001A = C \u304b\u3064 B = D \u3067\u3059\u3002\u5bfe\u5076\u2026","width":"100%","blog_url":"https://m-hiyama.hatenablog.com/","url":"https://m-hiyama.hatenablog.com/entry/20180409/1523240700","provider_name":"Hatena Blog","blog_title":"\u6a9c\u5c71\u6b63\u5e78\u306e\u30ad\u30de\u30a4\u30e9\u98fc\u80b2\u8a18 (\u306f\u3066\u306aBlog)","version":"1.0","published":"2018-04-09 11:25:00"}