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{{en|1=Complex numbers (C) include the real (R), which include the rational (Q), which include the integers (Z), which include the natural numbers (N).}} |
{{en|1=Complex numbers (C) include the real (R), which include the rational (Q), which include the integers (Z), which include the natural numbers (N).}} |
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|date=2014-08-25 13:15:38 |
|date=2014-08-25 13:15:38 |
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|source=原作者上传至[[commons:File:NumberSetinC.svg|维基共享资源]] |
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|source={{own}} |
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|author=HB |
|author=HB |
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