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Math Help - Schroeder-Bernstein Theorem

  1. #1
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    Schroeder-Bernstein Theorem

    If  f: A \to B and  g: B \to A are injections, then there exists a bijection  h: A \to B .

    So  |A| \leq|B| and  |B| \leq |A| then  |A| = |B| .

    I dont understand the proof of this theorem.
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    MHF Contributor red_dog's Avatar
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