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-rw-r--r--theories/Classes/RelationClasses.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/theories/Classes/RelationClasses.v b/theories/Classes/RelationClasses.v
index 80592d1363..9c5b757818 100644
--- a/theories/Classes/RelationClasses.v
+++ b/theories/Classes/RelationClasses.v
@@ -69,7 +69,7 @@ Program Instance flip_Irreflexive [ Irreflexive A R ] : Irreflexive (flip R) :=
Program Instance flip_Symmetric [ Symmetric A R ] : Symmetric (flip R).
- Solve Obligations using unfold flip ; program_simpl ; typeclass_app Symmetric.
+ Solve Obligations using unfold flip ; intros ; tcapp symmetry ; assumption.
Program Instance flip_Asymmetric [ Asymmetric A R ] : Asymmetric (flip R).