If so, every integer is surrounded by infinite rational numbers,
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送交者: steven 于 2012-04-25, 19:26:25:
回答: 啥解释也没这个清楚：每一个整数都被无穷多实数包围而且这些实数不重叠。 由 chouqilozi 于 2012-04-25, 14:56:26:
and all these rational numbers do not overlap, yet cardinal of integer set and rational set are exactly the same?
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