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-rw-r--r--contrib/setoid_ring/NArithRing.v10
1 files changed, 0 insertions, 10 deletions
diff --git a/contrib/setoid_ring/NArithRing.v b/contrib/setoid_ring/NArithRing.v
index 33e3cb4e..ae067a8a 100644
--- a/contrib/setoid_ring/NArithRing.v
+++ b/contrib/setoid_ring/NArithRing.v
@@ -12,16 +12,6 @@ Import InitialRing.
Set Implicit Arguments.
-Ltac isNcst t :=
- let t := eval hnf in t in
- match t with
- N0 => constr:true
- | Npos ?p => isNcst p
- | xI ?p => isNcst p
- | xO ?p => isNcst p
- | xH => constr:true
- | _ => constr:false
- end.
Ltac Ncst t :=
match isNcst t with
true => t