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-rw-r--r--plugins/btauto/Algebra.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/plugins/btauto/Algebra.v b/plugins/btauto/Algebra.v
index 638a4cef21..3ad5bc9f2d 100644
--- a/plugins/btauto/Algebra.v
+++ b/plugins/btauto/Algebra.v
@@ -1,4 +1,4 @@
-Require Import Bool PArith DecidableClass Omega Lia.
+Require Import Bool PArith DecidableClass Ring Omega Lia.
Ltac bool :=
repeat match goal with