正定理成立反定理不1定成立.剛上網的人才玩這個.大師灌這個多沒勁啊
所有跟帖:
• 反定理就是逆否命題麽? -飛翔的魚- ♂ (0 bytes) () 04/08/2010 postreply 00:19:35
• 反定理就是逆否命題麽? -飛翔的魚- ♂ (0 bytes) () 04/08/2010 postreply 00:19:35
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