{"version":"1.0","categories":["scala","haskell","java","jvm"],"type":"rich","blog_url":"https://xuwei-k.hatenablog.com/","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/xuwei/","url":"https://xuwei-k.hatenablog.com/entry/20150420/1429554365","author_name":"xuwei","width":"100%","blog_title":"xuwei-k's blog","image_url":null,"title":"\"Theorems for free!\"\u3068Parametricity\u3068JVM\u3068CLR\u306e\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u306e\u5b9f\u88c5\u306e\u9055\u3044\u306e\u95a2\u4fc2","description":"\u3068\u3044\u3046\u984c\u3060\u3051\u601d\u3044\u3064\u3044\u3066\u3001\u4e2d\u8eab\u3092\u66f8\u3051\u308b\u6c17\u304c\u3057\u306a\u3044\u306e\u3067\u3001\u8ab0\u304b\u66f8\u3044\u3066\u6b32\u3057\u3044(\u4ed6\u529b\u672c\u9858)","provider_url":"https://hatena.blog","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fxuwei-k.hatenablog.com%2Fentry%2F20150420%2F1429554365\" title=\"&quot;Theorems for free!&quot;\u3068Parametricity\u3068JVM\u3068CLR\u306e\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u306e\u5b9f\u88c5\u306e\u9055\u3044\u306e\u95a2\u4fc2 - xuwei-k&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2015-04-20 03:26:05"}