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Thread: [SOLVED] von Neumann Ordinals

  1. March 19th 2010, 09:47 AM #1
    Deadstar
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    [SOLVED] von Neumann Ordinals

    Let \alpha and \beta be two von Neumann ordinals. Show that \alpha \subset \beta if and only if \alpha \in \beta .

    <= is easy enough

    => is where my mind breaks down...
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  2. March 19th 2010, 11:08 AM #2
    Deadstar
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    Ah sugar didn't mean to post this.

    Internet was disconnecting as I hit create new thread so thought it never got made... Can just ignore it...
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