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Well-ordering theorem: If A is a set, there exists an order relation on A that is a well-ordering.

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Not really. What is a set? Something put together.

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2Â¥: Originally posted by zaq123321 at 2016-04-21 19:28:12
Not really. What is a set? Something put together.

×Ü¿ÉÒÔÒ»¸öorder relation on a set£¿²»¹Üʲô¼¯ºÏ£¿

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ÁøÈô·çÆ®: ½ð±Ò+4, ¡ï¡ï¡ïºÜÓаïÖú 2016-04-22 06:06:15
If you can, then the set is called an ordered set. Whether you can or not, it depends. I believe there is no claim that every set must have an order or suborder.

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