{"height":"190","version":"1.0","type":"rich","categories":["\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"provider_url":"https://hatena.blog","published":"2013-09-14 11:59:24","title":"\u3053\u308f\u304f\u306a\u3044 Idris (5)","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmandel59.hateblo.jp%2Fentry%2F2013%2F09%2F14%2F115924\" title=\"\u3053\u308f\u304f\u306a\u3044 Idris (5) - Ryusei\u2019s Notes (a.k.a. M59\u306e\u30d6\u30ed\u30b0)\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://mandel59.hateblo.jp/","blog_title":"Ryusei\u2019s Notes (a.k.a. M59\u306e\u30d6\u30ed\u30b0)","width":"100%","url":"https://mandel59.hateblo.jp/entry/2013/09/14/115924","author_name":"mandel59","author_url":"https://blog.hatena.ne.jp/mandel59/","provider_name":"Hatena Blog","image_url":"http://chart.apis.google.com/chart?cht=tx&chl=%5Cforall%20x%20%5Cin%20A%20%28P%28x%29%29","description":"\u8868\u660e\u304b\u3089\u8a3c\u660e\u3078 (2) \u578b\u3068\u547d\u984c \u30ab\u30ea\u30fc\u30a0\u30cf\u30ef\u30fc\u30c9\u540c\u578b\u5bfe\u5fdc\u306b\u3088\u308a\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u8a3c\u660e\u304c\u5bfe\u5fdc\u3059\u308b\u3068\u8ff0\u3079\u305f\u3002\u5b9f\u969b\u306b\u306f\u3069\u306e\u3088\u3046\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u306e\u3060\u308d\u3046\u304b? \u5b9f\u306f\u3001\u6052\u771f\u3067\u3042\u308b\u547d\u984c\u306f\u3001\u7a7a\u3067\u306a\u3044\uff08\u305d\u306e\u578b\u3067\u3042\u308b\u5024\u3092\u6301\u3064\uff09\u578b\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u306e\u3060\u3002 \u578b\u3068\u547d\u984c\u306e\u5bfe\u5fdc\u95a2\u4fc2\u3092\u898b\u3066\u307f\u3088\u3046\u3002 \u578b \u547d\u984c (x : A) -> P x (x : A ** P x) Not P (P, Q) Either P Q P -> Q \u3053\u3053\u3067\u3001Not\u306fBuiltins.idr\u3067\u6b21\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3002 Not : Type -> Type Not a = a -> _|__|_ \u3068\u3044\u3046\u5947\u5999\u306a\u578b\u306f\u3001Haskell\u306eData.Void\u578b\u3068\u540c\u3058\u2026"}