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-rw-r--r--theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v2
1 files changed, 0 insertions, 2 deletions
diff --git a/theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v b/theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v
index 96f243fa62..69feb93151 100644
--- a/theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v
+++ b/theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v
@@ -295,8 +295,6 @@ Qed.
(** Log2 *)
-Program Instance log2_wd : Proper (eq==>eq) log2.
-
Lemma log2_spec : forall n, 0<n ->
2^(log2 n) <= n /\ n < 2^(succ (log2 n)).
Proof.