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3.3 ¿ô¸þ¤±¤Î·¿½Ò¸ì

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Function: floatp object

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Function: integerp object

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Function: numberp object

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Function: wholenump object

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natnump¤Ï¡¢wholenump¤ÎÇѤ줿ƱµÁ¸ì¡£

Function: zerop number

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