{"title":"\u3053\u308f\u304f\u306a\u3044 Idris (3)","provider_url":"https://hatena.blog","blog_title":"Ryusei\u2019s Notes (a.k.a. M59\u306e\u30d6\u30ed\u30b0)","author_name":"mandel59","provider_name":"Hatena Blog","width":"100%","version":"1.0","blog_url":"https://mandel59.hateblo.jp/","description":"\u30cf\u30ed\u30fc\u3001\u4f9d\u5b58\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u4e16\u754c (3) \u4f9d\u5b58\u30da\u30a2 \u4f9d\u5b58\u30da\u30a2 dependent pair \u3068\u306f\u3001\u3042\u308b\u5024\u3068\u3001\u305d\u306e\u5024\u306b\u4f9d\u5b58\u3057\u305f\u578b\u3092\u6301\u3064\u5024\u306e\u30da\u30a2\u306e\u3053\u3068\u3060\u3002 data Exists : (a : Type) -> (P : a -> Type) -> Type where Ex_intro : {P : a -> Type} -> (x : a) -> P x -> Exists a PEx_intro\u306b\u3088\u3063\u3066\u4f5c\u3089\u308c\u305f\u30da\u30a2\u306f\u3001a\u3068\u3044\u3046\u578b\u306e\u5024x\u3068\u3001x\u306b\u4f9d\u5b58\u3057\u305f P x \u3068\u3044\u3046\u578b\u3092\u6301\u3063\u305f\u5024\u3092\u4fdd\u6301\u3057\u3066\u3044\u308b\u3002\u306a\u305c\u3053\u306e\u30c7\u30fc\u30bf\u578b\u306e\u578b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304cExists\u3068\u3044\u3046\u540d\u524d\u306a\u306e\u304b\u3068\u8a00\u3048\u3070\u3001Exists A P\u3068\u3044\u2026","type":"rich","height":"190","published":"2013-09-06 10:40:42","categories":["\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"author_url":"https://blog.hatena.ne.jp/mandel59/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmandel59.hateblo.jp%2Fentry%2F2013%2F09%2F06%2F104042\" title=\"\u3053\u308f\u304f\u306a\u3044 Idris (3) - 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>","url":"https://mandel59.hateblo.jp/entry/2013/09/06/104042","image_url":null}