無窮大小有精確定義，要證偽應該不難。無理數的定義應該也是很明確的。隻要證明它不是有理數，就可以了。都可以證偽的。

來源: 郭大平於 2024-10-31 14:08:29 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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