I'm wondering if this is possible to delete duplicate elements if a=b and b=a using deleteduplicates or any simple way.
l1 = {{284, 220}, {220, 284}, {1210, 1184}, {1184, 1210}, {2924,
2620}, {2620, 2924}, {5564, 5020}, {5020, 5564}, {6368,
6232}, {6232, 6368}, {10856, 10744}, {10744, 10856}, {14595, 12285}}
DeleteDuplicatesBy[
l1], First == Last && Last==First]
For exemple, I would like to delete {284,220}, {1210,1184}, ...
Thank you
l1 // DeleteDuplicatesBy[Sort]
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