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Math Help - Hasse diagram (tough one)

  1. #1
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    Hasse diagram (tough one)

    Hi there I wanna check these answers for the attached hasse diagram:

    a)upper bound of {a,b,c} - my answer -> l only
    b)least upper bound of {a,b,c} my answer -> l
    c)lower bounds of {f,g,h} my answer -> none
    d)greatest lower bound of {f,g,h} -> none


    This diagram is really weird!
    Attached Thumbnails Attached Thumbnails Hasse diagram (tough one)-hassediag.bmp  
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  2. #2
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    Hello,

    Quote Originally Posted by robocop_911 View Post
    Hi there I wanna check these answers for the attached hasse diagram:

    a)upper bound of {a,b,c} - my answer -> l only
    Nope. See there is a path from a, b and c to k, l and m

    b)least upper bound of {a,b,c} my answer -> l
    have a look at k.

    c)lower bounds of {f,g,h} my answer -> none
    d)greatest lower bound of {f,g,h} -> none
    I'd say, yes ^^

    This diagram is really weird!
    There are worse
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