X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Ftests%2Fng_commands.ma;h=2241043a9fe05d09f723d02ba1f0ef54c3714bdc;hb=647b419e96770d90a82d7a9e5e8843566a9f93ee;hp=03d9df0927824cfe6dce028b5bac37220268e29a;hpb=0542386e10041791982e7240f281299677b1997b;p=helm.git

diff --git a/helm/software/matita/tests/ng_commands.ma b/helm/software/matita/tests/ng_commands.ma
index 03d9df092..2241043a9 100644
--- a/helm/software/matita/tests/ng_commands.ma
+++ b/helm/software/matita/tests/ng_commands.ma
@@ -12,7 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
-include "nat/plus.ma".
+include "ng_pts.ma".
 
 ndefinition thesis0: ∀A:Type.Type ≝ λA. A → A.
 
@@ -30,6 +30,8 @@ naxiom NP: Prop.
 
 ndefinition Q: Prop ≝ NP.
 
+include "nat/nat.ma".
+
 nlet rec nzero (n:nat) : nat ≝
  match n with
   [ O ⇒ O
@@ -39,12 +41,22 @@ ntheorem nzero_ok: nzero (S (S O)) = O.
  napply (refl_eq ? O);
 nqed.
 
-ninductive nnat: Type ≝
-   nO: nnat
- | nS: nnat → nnat.
-
-(* testare anche i record e le ricorsioni/coricorsioni/(co)induttivi MUTUI *)
-
-(*
-nrecord pair: Type ≝ { l: pair; r: pair }.
-*)
\ No newline at end of file
+naxiom DT: nat → Type.
+naxiom dt: ∀n. DT n.
+
+ninductive nnat (n: nat) (A:DT n): Type ≝
+   nO: nnat n A
+ | nS: mat n A → mat n A → nnat n A
+with mat: Type ≝ 
+ |mS : nnat n A → mat n A.
+
+nlet rec nnzero (n:nnat 0 (dt ?)) : nnat 0 (dt ?) ≝
+ match n return ? with
+  [ nO ⇒ nO 0 (dt ?)
+  | nS m _ ⇒ nmzero m ]
+and nmzero (m:mat 0 (dt ?)) : nnat 0 (dt ?) ≝ 
+ match m return ? with
+ [ mS n ⇒ nnzero n ].
+
+nrecord pair (n: nat) (x: DT n) (label: Type): Type ≝
+ { lbl:label; l: pair n x label; r: pair n x label}.