{"published":"2008-08-10 04:32:29","image_url":null,"height":"190","blog_title":"\u304d\u3061\u3081\u3082","provider_url":"https://hatena.blog","blog_url":"https://se-kichi.hatenadiary.org/","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fse-kichi.hatenadiary.org%2Fentry%2F20080810%2F1218396749\" title=\"ex3.28 - \u304d\u3061\u3081\u3082\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/se-kichi/","author_name":"se-kichi","categories":["SICP","exercise"],"provider_name":"Hatena Blog","type":"rich","description":"\u3053\u3093\u306a\u6642\u9593\u3060\u304c\u3001\u524d\u306e\u30a8\u30f3\u30c8\u30ea\u306b\u3082\u3042\u308b\u901a\u308a\u3053\u306e\u307e\u307e\u5bdd\u3066\u3057\u307e\u3046\u306e\u306f\u6094\u3057\u3044\u306e\u3067\uff08\u307e\u3041\u5bdd\u305f\u65b9\u304c\u52b9\u7387\u306f\u3044\u3044\u3093\u3060\u308d\u3046\u304c\uff09\u5c11\u3057\u3050\u3089\u3044\u306f\u554f\u984c\u3092\u89e3\u3044\u3066\u304b\u3089\u5bdd\u3088\u3046\u3001\u3046\u3093\u3002 \u4ee5\u4e0b\u3001\u9069\u5f53\u306a\u56de\u7b54 (define (or-gate a1 a2 output) (define (or-action-procedure) (let ((new-value (logical-or (get-signal a1) (get-signal a2)))) (after-delay or-gate-delay (lambda () (set-signal! output new-value))))) (add-action! a1 o\u2026","url":"https://se-kichi.hatenadiary.org/entry/20080810/1218396749","title":"ex3.28","version":"1.0"}