{"provider_url":"https://hatena.blog","description":"\u3044\u304f\u3064\u304bDL\u3002Frege\u306b\u95a2\u3059\u308b\u3082\u306e\u3060\u3051\u4ee5\u4e0b\u306b\u63b2\u3052\u3066\u304a\u304f\u3002 Hartley Slater \u201cA Poor Concept Script\u201d, in: Australasian Journal of Logic, vol. 2, 2004 The formal structure of Frege\u2019s \u2018concept script\u2019 has been widely adopted in logic text books since his time, even though its rather elaborate symbols have been abandoned for more con\u2026","version":"1.0","type":"rich","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnuhsnuh.hatenablog.jp%2Fentry%2F20070125%2Fp1\" title=\" - nuhsnuh\u2019s blog\" 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://nuhsnuh.hatenablog.jp/entry/20070125/p1","author_name":"nuhsnuh","width":"100%","height":"190","published":"2007-01-25 00:00:00","title":"","categories":["\u5165\u624b\u6587\u732e","\u5165\u624b\u6587\u732e"],"author_url":"https://blog.hatena.ne.jp/nuhsnuh/","provider_name":"Hatena Blog","blog_url":"https://nuhsnuh.hatenablog.jp/","blog_title":"nuhsnuh\u2019s blog"}