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FIXED: Take all variables into account during goal projection.

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This addresses #1751.
This commit is contained in:
Markus Triska
2023-03-08 21:16:54 +01:00
parent c9ecfb11d9
commit 884b0ca10e
1 changed files with 1 additions and 1 deletions
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src/lib/dif.pl
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@@ -65,7 +65,7 @@ dif(X, Y) :-
gather_dif_goals(_, []) --> []. gather_dif_goals(_, []) --> [].
gather_dif_goals(V, [(X \== Y) | Goals]) --> gather_dif_goals(V, [(X \== Y) | Goals]) -->
( { term_variables(X, [V0 | _]), ( { term_variables(X-Y, [V0 | _]),
V == V0 } -> V == V0 } ->
[dif:dif(X, Y)] [dif:dif(X, Y)]
; [] ; []