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[组合] S中任意两个点的中垂线都过S中至少两个点

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天音 Posted 2016-9-10 18:45 |Read mode

平面内是否存在有限点集S，使得S中任意两个点的中垂线都过S中至少两个点

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Author| 天音 Posted 2016-10-3 14:19

顶下，感觉是不存在的，不知怎么证明，谁来证下？

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