Thanks,though it is trivial.
回答: should prove case m=3 as the first step of mathematics induction
由 wxcfan123
于 2015-02-06 19:56:54
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望不吝赐教。之所以好奇,是因为整个证明与LCM无关。太神了。
-wxcfan123-
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02/07/2015 postreply
10:38:56