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第二章 推理与证实,2.2直接证实与间接证实,2.2.2反证法,1/27,2/27,不成立,假设错误,原命题成立,已知条件,假设,定义,定理,公理,事实,3/27,4/27,5/27,6/27,7/27,8/27,用反证法证实否定性命题,9/27,10/27,11/27,12/27,用反证法证实唯一性命题,13/27,14/27,15/27,用反证法证实,“,至多,”“,最少,”,问题,16/27,17/27,18/27,19/27,20/27,21/27,22/27,23/27,24/27,25/27,26/27,谢谢观看,27/27,
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