File:Set partitions 4; Hasse; 2-subsets.svg

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The 15 partitions of a 4-element set ordered in a Hasse diagram,

represented by sets of 2-subsets of the 4-set in the array

These are the upper triangles of the equivalence relation matrices in without the main diagonal.
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Watchduck
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Noncrossing partitions

Compare: Partitions of a 5-element set



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Date/TimeThumbnailDimensionsUserComment
current12:43, 6 August 2014Thumbnail for version as of 12:43, 6 August 2014630 × 732 (178 KB)Wereldburger758 (talk | contribs)Removal grid from code. Valid SVG now.
15:42, 28 February 2014Thumbnail for version as of 15:42, 28 February 2014630 × 732 (181 KB)Watchduck (talk | contribs){{Information |Description ={{en|1=upload forms suck}} |Source ={{own}} |Author =Mate2code |Date = |Permission = |other_versions = }}

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