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-rw-r--r--src/Algebra.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Algebra.v b/src/Algebra.v
index 7f1310957..ca86b54e4 100644
--- a/src/Algebra.v
+++ b/src/Algebra.v
@@ -148,7 +148,7 @@ Section ZeroNeqOne.
Context {T eq zero one} `{@is_zero_neq_one T eq zero one} `{Equivalence T eq}.
Lemma one_neq_zero : not (eq one zero).
- Proof.
+ Proof using Type*.
intro HH; symmetry in HH. auto using zero_neq_one.
Qed.
End ZeroNeqOne.