記得有限覆蓋定理和聚點定理是等價的，用它們能證明別的定理。不記得它們和另外四個也等價。

來源: 泥中隱士於 2022-01-11 01:56:33 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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