Recent content by rami070

  1. R

    Proving me ? partial orders :hasse diagrams

    see it is proved
  2. R

    Proving me ? partial orders :hasse diagrams

    see it i prove
  3. R

    Proving me ? partial orders :hasse diagrams

    https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/s320x320/400327_199078300188664_100002594878940_372880_1793624919_n.jpg
  4. R

    Proving me ? partial orders :hasse diagrams

    partial orders :hasse diagrams theorem : if [A,R] is poset and A is finite , then A has both a maximal and a minimal element A={a1,a2,a3...an} but i know prove it is maximal , but i not know how i prove it is minimal ? please answer ?
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