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-rw-r--r--src/Util/ZUtil.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Util/ZUtil.v b/src/Util/ZUtil.v
index 9dc4eeb51..42e88e8c4 100644
--- a/src/Util/ZUtil.v
+++ b/src/Util/ZUtil.v
@@ -2130,7 +2130,7 @@ Module Z.
Qed.
Hint Resolve log2_ones_lt_nonneg : zarith.
- Lemma log2_lt_pow2_alt a b : 0 < b -> a < 2^b <-> Z.log2 a < b.
+ Lemma log2_lt_pow2_alt a b : 0 < b -> (a < 2^b <-> Z.log2 a < b).
Proof.
destruct (Z_lt_le_dec 0 a); auto using Z.log2_lt_pow2; [].
rewrite Z.log2_nonpos by omega.