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-rw-r--r--theories/Numbers/Integer/Binary/ZBinary.v2
-rw-r--r--theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v2
2 files changed, 0 insertions, 4 deletions
diff --git a/theories/Numbers/Integer/Binary/ZBinary.v b/theories/Numbers/Integer/Binary/ZBinary.v
index d4796d1067..b92b303f0d 100644
--- a/theories/Numbers/Integer/Binary/ZBinary.v
+++ b/theories/Numbers/Integer/Binary/ZBinary.v
@@ -151,8 +151,6 @@ Definition pow := Zpower.
(** NB : we use a new Zsqrt defined in Zsqrt_def, the previous
module Zsqrt.v is now Zsqrt_compat.v *)
-Program Instance sqrt_wd : Proper (eq==>eq) Zsqrt.
-
Definition sqrt_spec := Zsqrt_spec.
Definition sqrt_neg := Zsqrt_neg.
Definition sqrt := Zsqrt.
diff --git a/theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v b/theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v
index 69feb93151..6689875cb0 100644
--- a/theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v
+++ b/theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v
@@ -280,8 +280,6 @@ Qed.
(** Sqrt *)
-Program Instance sqrt_wd : Proper (eq==>eq) sqrt.
-
Lemma sqrt_spec : forall n, 0<=n ->
(sqrt n)*(sqrt n) <= n /\ n < (succ (sqrt n))*(succ (sqrt n)).
Proof.