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Math Help - 13 basic questions of set theory.

  1. #1
    Junior Member Researcher's Avatar
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    13 basic questions of set theory.

    Hello all.
    Note the picture:

    They all are important for me, but you can answer to each one you know.

    Regards.
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  2. #2
    MHF Contributor

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    What is your point in posting such a list of statements?
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  3. #3
    Junior Member Researcher's Avatar
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    I could not solve them and I need their proofs.
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  4. #4
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    Quote Originally Posted by Researcher View Post
    I could not solve them and I need their proofs.
    Too many questions in one thread. No more than 3 questions per thread please. And please type questions where possible rather than using attachments (typesetting maths symbols can be learned here: http://www.mathhelpforum.com/math-he...-tutorial.html). Thankyou.

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