snapshot for CSC

[helm.git] / helm / software / matita / nlibrary / nat / nat.ma

diff --git a/helm/software/matita/nlibrary/nat/nat.ma b/helm/software/matita/nlibrary/nat/nat.ma
index 362a5ad363dc446f8f44383565e08e6c628596d5..e9d32973bdb02a10caba88490cd84603209feee4 100644 (file)
--- a/helm/software/matita/nlibrary/nat/nat.ma
+++ b/helm/software/matita/nlibrary/nat/nat.ma
@@ -12,6 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "hints_declaration.ma".
 include "logic/equality.ma".
 include "sets/setoids.ma".
 
@@ -23,4 +24,5 @@ ndefinition NAT: setoid.
  napply mk_setoid [ napply nat | napply EQ]
 nqed.
 
-unification hint 0 ((λx,y.True) (carr NAT) nat).
+alias symbol "hint_decl" = "hint_decl_Type1".
+unification hint 0 ≔ ⊢ carr NAT ≡ nat.