其實應該說自然數能被一階邏輯搞定。大概有些反直覺，但其實所有數都是抽象且不存在於自然界的。

來源: 露重煙微於 2023-12-01 11:33:00 [舊帖] [給我悄悄話] 本文已被閱讀：次

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