{"type":"rich","blog_title":"awacio.log","author_name":"awacio","author_url":"https://blog.hatena.ne.jp/awacio/","description":"\u4f8b\u306b\u3088\u3063\u3066\u4f11\u307f\u6642\u9593\u4e2d\u306b\u554f\u984c\u6587\u3092\u3002\u3002 \u554f\u984c \u3053\u308c\u306f\u5bfe\u306e\u3082\u3046\u4e00\u3064\u306e\u624b\u7d9a\u304d\u8868\u73fe\u3067\u3042\u308b\u3002\u3053\u306e\u8868\u73fe\u306b\u3064\u3044\u3066\u4efb\u610f\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8 x \u3068 y \u306b\u5bfe\u3057\u3001(car (cons x y)) \u304c x \u3092\u751f\u3058\u308b\u3053\u3068\u3092\u8a3c\u660e\u305b\u3088\u3002 (define (cons x y) (lambda (m) (m x y))) (define (car z) (z (lambda (p q) p))) \u3053\u308c\u306b\u5bfe\u3059\u308b cdr \u306e\u5b9a\u7fa9\u306f\u4f55\u304b\u3002\uff08\u30d2\u30f3\u30c8\uff1a\u3053\u308c\u304c\u50cd\u304f\u3053\u3068\u3092\u8abf\u3079\u308b\u306b\u306f\u30011.1.5\u7bc0\u306e\u7f6e\u304d\u63db\u3048\u30e2\u30c7\u30eb\u5229\u7528\u305b\u3088\u3002\uff09 \u89e3\u7b54 \u30d2\u30f3\u30c8\u3092\u3042\u308a\u304c\u305f\u304f\u9802\u6234\u3057\u3001\u7f6e\u304d\u63db\u3048\u30e2\u30c7\u30eb\u3092\u3084\u3063\u3066\u307f\u3088\u3046\u3002 (car (cons x y)) ;\u2193 (car (lam\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fawacio.hatenadiary.org%2Fentry%2F20100326%2F1269575755\" title=\"SICP \u554f\u984c 2.4\uff08cons\u306e\u5225\u8868\u73fe\uff09 - awacio.log\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2010-03-26 12:55:55","title":"SICP \u554f\u984c 2.4\uff08cons\u306e\u5225\u8868\u73fe\uff09","categories":["Scheme","SICP"],"image_url":null,"height":"190","version":"1.0","width":"100%","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","url":"https://awacio.hatenadiary.org/entry/20100326/1269575755","blog_url":"https://awacio.hatenadiary.org/"}