{"width":"100%","provider_url":"https://hatena.blog","blog_title":"\u30c8\u30a2\u30eb\u96fb\u7b97\u5ba4\u30ce\u696d\u52d9\u65e5\u8a8c","blog_url":"https://foojee.hatenadiary.org/","description":"\u3053\u3053\u6570\u65e5\u524d\u304b\u3089\u300c\u30e1\u30e2\u300d\u3068\u30bf\u30a4\u30d7\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u306a\u305c\u304b\u300c\u30e2\u30a8\u300d\u3068\u6253\u3061\u9593\u9055\u3048\u3066\u3057\u307e\u3046\u3002 modus ponens \u80af\u5b9a\u5f0f \u30ea\u30c6\u30e9\u30eb \u8ad6\u7406\u5909\u6570x \u307e\u305f\u306f\u305d\u306e\u5426\u5b9a \u00acx \u306e\u3053\u3068 \u7d20\u5f0f\u3042\u308b\u3044\u306f\u5426\u5b9a\u306e\u4ed8\u3044\u305f\u7d20\u5f0f\u306e\u3053\u3068\u3002 \u7bc0(clause) \u30ea\u30c6\u30e9\u30eb\u3092\u2228\u3067\u7e4b\u3052\u305f\u3082\u306e\u3002 \u3059\u3079\u3066\u306e\u8ff0\u8a9e\u8ad6\u7406\u5f0f\u306f3-CNF\uff08\u7bc0\u306e\u4e2d\u306b\u30ea\u30c6\u30e9\u30eb\u304c3\u3064\u306e\u304b\u305f\u3061\uff09\u306b\u5909\u63db\u304c\u53ef\u80fd\u3002 3-CNF\u306e\u4f8b (x1\u2228x2\u2228x3)\u2227(x4\u2228x5\u2228x6)\u2227(x7\u2228x8\u2228x9) \u306e\u3088\u3046\u306a\u5f62\u306b\u306a\u3063\u3066\u3044\u308b\u3002 CNF\u306e\u30eb\u30fc\u30eb \u7bc0\u306e\u4e2d\u306e\u30ea\u30c6\u30e9\u30eb\u3092\u7e4b\u3050\u306e\u306f \u2228 \u306e\u307f \u7bc0\u540c\u58eb\u3092\u7e4b\u3050\u306e\u306f \u2227 \u306e\u307f \u00ac \u306f \u30ea\u30c6\u30e9\u30eb\u306e\u4e2d\u3060\u3051\u306b\u3064\u3051\u308b\u3053\u3068 \u25a0CNF\u306b\u5909\u63db\u3059\u308b\u4f8b \u304a\u984c \uff1a A\u21d4\u2026","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ffoojee.hatenadiary.org%2Fentry%2F20091209\" title=\"CNF\u3000\u4e57\u6cd5\u6a19\u6e96\u5f62\u3000Conjunctive normal form\u3000\u30e1\u30e2 - \u30c8\u30a2\u30eb\u96fb\u7b97\u5ba4\u30ce\u696d\u52d9\u65e5\u8a8c\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","url":"https://foojee.hatenadiary.org/entry/20091209","title":"CNF\u3000\u4e57\u6cd5\u6a19\u6e96\u5f62\u3000Conjunctive normal form\u3000\u30e1\u30e2","type":"rich","author_name":"foojee","published":"2009-12-09 00:00:00","categories":[],"author_url":"https://blog.hatena.ne.jp/foojee/","version":"1.0","height":"190"}