I have a question from hw, the question is stated "Show that if the poset (S,R) is a lattice then the dual poset (S,R^-1) is also a lattice"(adsbygoogle = window.adsbygoogle || []).push({});

I know by Rosen theory that the dual of a Poset is also a poset but how can i prove that it is also a lattice, what def. am i missing. Any help would be greatly apprieciated.

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# Homework Help: Discrete Math Poset's

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