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Math Help - Quantifiers

  1. #1
    Newbie
    Joined
    Dec 2006
    Posts
    23

    Quantifiers

    Hi
    Does anyone can help me to get the correct solutions for those problems? Thanx

    Quantifiers-quatifiers.jpg
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  2. #2
    Member
    Joined
    Aug 2008
    Posts
    80
    Hello,

    (i) True. Let x=1. There are no y, z satisfying x>y^2+z^2.
    (ii) True. For all u, you can always find some v such that u+v is a square.
    (iii) False. When u=w, no x satisfies u>wx and no v satisfies w>uv.

    Bye.
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