分三步證明
1. All prime numbers greater than 2 are odd numbers
2.Odd number- odd number= even number2m+1-2n-1=2(m-n)
3.The difference can't be 0, so it must be larger than 1( at least 2)
各位大俠覺得如何?
謝謝兩位的答複,我想
本帖於 2010-04-08 18:02:03 時間, 由版主 於德利 編輯
所有跟帖:
• If the difference is one, then one of the two is -屋漏痕- ♂ (147 bytes) () 04/01/2010 postreply 11:47:04