A=B,they are semantically not two sets, but symbolically two set

來源: 皆兄弟也於 2010-07-24 11:37:48 [檔案] [博客] [舊帖] [給我悄悄話] 閱讀數 : (0 bytes)

回答: 排除第三者，互補就構不成兩個集合之間的關係。由皆兄弟也於 2010-07-24 10:11:29

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