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1.3.2 nil¤Èt

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(cons 'foo ())                ; ¶õ¥ê¥¹¥È¤Ç¤¢¤ë¤³¤È¤ò¶¯Ä´¤¹¤ë
(not nil)                     ; ¿¿ÍýÃͤε¶¤Ç¤¢¤ë¤³¤È¤ò¶¯Ä´¤¹¤ë

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