从数学上(set theory)讲话不能说面试有无穷多的点组成的

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送交者: HunHunSheng 于 2006-12-19, 15:52:47:

无穷多的点 are countable. But a plane is not
countable. A set of countable elements
can not form a uncountable set.

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可以看出来,有不少人随时随地都想看您的笑话 (无内容) - Wood (0 bytes) 2006-12-19, 16:50:24 (116419)
混混露怯了，不懂 countable 无穷和uncountable 无穷. (无内容) - 華有缺 (0 bytes) 2006-12-19, 16:19:40 (116410)
if 面试有无穷多的点组成, how can anyone pass? - steven (88 bytes) 2006-12-19, 16:08:17 (116401)
who said ∞ is countable? (无内容) - 匆匆过客 (0 bytes) 2006-12-19, 16:04:23 (116396)
- 无穷多的点 is a countable set - HunHunSheng (140 bytes) 2006-12-19, 16:06:32 (116398)
  - a proper subset of a infinite set can be a infinite set itsefl. - steven (174 bytes) 2006-12-19, 16:12:10 (116402)
    - It is about countable vs uncountable not finite vs infinite - HunHunSheng (224 bytes) 2006-12-19, 16:23:08 (116411)
      - what do you mean uncountable? You can't count integer? - steven (105 bytes) 2006-12-19, 16:48:55 (116417)
  - of course you can. they are real numbers. - 匆匆过客 (29 bytes) 2006-12-19, 16:08:05 (116400)
    - a countable set of real number is still countable - HunHunSheng (54 bytes) 2006-12-19, 16:12:42 (116403)
      - The set of Natural numbers is countable but not the real set - 匆匆过客 (152 bytes) 2006-12-19, 16:15:11 (116406)
        
        should be real NUMBER set (无内容) - 匆匆过客 (0 bytes) 2006-12-19, 16:19:09 (116408)
JFF缺乏基本的数学涵养 (无内容) - HunHunSheng (0 bytes) 2006-12-19, 15:54:41 (116391)
- How many years would it take for an idiot like me to catch up? - Wood (273 bytes) 2006-12-19, 16:45:25 (116415)
- 让你免试上北大物理,不允许转数学系 (无内容) - blackbox (0 bytes) 2006-12-19, 16:06:58 (116399)

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