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Thread: Sets

  1. #1 Sets 
    Forum Ph.D. Heinsbergrelatz's Avatar
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    How do you prove:



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    "Mathematicians stand on each other's shoulders."- Carl Friedrich Gauss


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  3. #2  
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    Well,
    the thing to prove here is that if

    than
    .

    If (1) holds, than also holds (from definition of intersection). From this we can immediately conclude (2).


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  4. #3  
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    Quote Originally Posted by Heinsbergrelatz View Post
    How do you prove:

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