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intersection on relations is bugged #28

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pfdietz opened this issue Feb 4, 2020 · 1 comment
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intersection on relations is bugged #28

pfdietz opened this issue Feb 4, 2020 · 1 comment
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@slburson
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1.4.0

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@pfdietz
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pfdietz commented Feb 4, 2020

(equalp (intersection (convert '2-relation '((1 . 2))) (convert '2-relation '((1 . 3)))) (empty-2-relation)) ==> NIL

The problem is the representation for the intersection maps 1 to an empty set, but this pair should have been removed from the tree, as it causes EQUAL? to indicate they are not the same.
@slburson slburson self-assigned this Jan 15, 2024
@slburson slburson added this to the 1.4.0 milestone May 17, 2024
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Fixed in 4949109.

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