File:Birkhoff representation theorem.gif

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Summary

Description Example of Birkhoff's representation theorem for distributive lattices. The join-irreducible elements (nodes) of the distributive example lattice are shadowed, and named a,...,g for reference purposes. They satisfy the relations   f < d < a,   f < c < a,   g < e < b,   g < c < b.   By Birkhoff's theorem, the set of all down-sets built of these elements, ordered by set inclusion, is isomorphic to the original lattice. For each node, the down-set it corresponds to is shown in blue, with set braces {} omitted for brevity.
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Source Own work, inspired by Fig.8.3 (p.167) of B.A. Davey and H.A. Priestley (1990) Introduction to Lattices and Order, Cambridge Mathematical Textbooks, Cambridge University Press
Author Jochen Burghardt
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17 October 2014

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Date/TimeThumbnailDimensionsUserComment
current19:13, 29 January 2016Thumbnail for version as of 19:13, 29 January 2016423 × 723 (7 KB)Jochen Burghardttried to improve readability: boldface for shadowed nodes, darker colors
17:15, 18 October 2014Thumbnail for version as of 17:15, 18 October 2014423 × 723 (7 KB)Jochen Burghardt{{Information |Description=Example of en:Birkhoff's representation theorem for lattices. |Source={{own}}, inspired by Fig.8.3 (p.167) of {{cite book | author=B.A. Davey and H.A. Priestley | title=Introduction to Lattices and Order | publisher=Camb...
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