If you are talking about rational numbers, M, N are the same which is


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送交者: steven 于 2008-12-12, 01:30:37:

回答: 向这里的数学高手问个问题:两个无穷大的比较 由 xinlihuaxys 于 2008-12-12, 01:11:02:

aleph-null, the transfinite cardinal number of the set of all positive integer. If you are talking about real number, M and N are still the same, which is aleph-one, the cardinal number of the set of all real which is bigger than aleph-null.



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