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-rw-r--r--src/Spec/WeierstrassCurve.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Spec/WeierstrassCurve.v b/src/Spec/WeierstrassCurve.v
index 87b5bcffd..eebc79df4 100644
--- a/src/Spec/WeierstrassCurve.v
+++ b/src/Spec/WeierstrassCurve.v
@@ -62,7 +62,7 @@ Module W.
| ∞, _ => coordinates P2
| _, ∞ => coordinates P1
end) _.
- Next Obligation. exact (Pre.add_onCurve _ _ (proj2_sig _) (proj2_sig _)). Qed.
+ Next Obligation. apply (Pre.add_onCurve _ _ (proj2_sig _) (proj2_sig _)). Qed.
Fixpoint mul (n:nat) (P : point) : point :=
match n with