Proving me ? partial orders :hasse diagrams

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Homework Help Overview

The discussion revolves around the properties of partial orders and Hasse diagrams, specifically focusing on the theorem that states if \([A,R]\) is a finite poset, then it must contain both a maximal and a minimal element. The original poster expresses understanding of how to prove the existence of a maximal element but seeks assistance in proving the existence of a minimal element.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants inquire about the proof of the maximal element and seek clarification on the proof for the minimal element. There is a focus on understanding the underlying principles of the theorem.

Discussion Status

The discussion is ongoing, with participants asking for clarification and sharing attempts at proofs. Some have provided visual aids, but there is no explicit consensus or resolution regarding the proof of the minimal element.

Contextual Notes

The original poster indicates a lack of knowledge on proving the minimal element, suggesting that there may be gaps in understanding or assumptions that need to be addressed. The nature of the inquiry implies constraints related to homework guidelines.

rami070
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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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How did you prove that there is a maximal element?
 
https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/s320x320/400327_199078300188664_100002594878940_372880_1793624919_n.jpg
 
Last edited by a moderator:
see it i prove
 
see it is proved
 

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