X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2FRELATIONAL%2FNPlus%2Finv.ma;h=e3ec16898e0766f2a041eab6fcaed38a525bb4c2;hb=f261b8315d0b14781ae78740feb476327083d664;hp=ea196cd6d9fbb2a9bcf288b4a8af17eb6b9f339e;hpb=ee31ecd9be54fb4a3d815f11d77e88c3c49ff363;p=helm.git

diff --git a/helm/software/matita/contribs/RELATIONAL/NPlus/inv.ma b/helm/software/matita/contribs/RELATIONAL/NPlus/inv.ma
index ea196cd6d..e3ec16898 100644
--- a/helm/software/matita/contribs/RELATIONAL/NPlus/inv.ma
+++ b/helm/software/matita/contribs/RELATIONAL/NPlus/inv.ma
@@ -12,7 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
-set "baseuri" "cic:/matita/RELATIONAL/NPlus/inv".
+
 
 include "NPlus/defs.ma".
 
@@ -26,29 +26,29 @@ theorem nplus_inv_succ_1: \forall p,q,r. ((succ p) + q == r) \to
                           \exists s. r = (succ s) \land p + q == s.
  intros. elim H; clear H q r; intros;
  [ autobatch depth = 4
- | clear H1. decompose. subst. autobatch depth = 4
+ | clear H1. decompose. destruct. autobatch depth = 4
  ]
 qed.
 
 theorem nplus_inv_zero_2: \forall p,r. (p + zero == r) \to p = r.
- intros. inversion H; clear H; intros; subst. autobatch.
+ intros. inversion H; clear H; intros; destruct. autobatch.
 qed.
 
 theorem nplus_inv_succ_2: \forall p,q,r. (p + (succ q) == r) \to 
                           \exists s. r = (succ s) \land p + q == s.
- intros. inversion H; clear H; intros; subst.
+ intros. inversion H; clear H; intros; destruct.
  autobatch depth = 4.
 qed.
 
 theorem nplus_inv_zero_3: \forall p,q. (p + q == zero) \to 
                           p = zero \land q = zero.
- intros. inversion H; clear H; intros; subst. autobatch.
+ intros. inversion H; clear H; intros; destruct. autobatch.
 qed.
 
 theorem nplus_inv_succ_3: \forall p,q,r. (p + q == (succ r)) \to
                           \exists s. p = succ s \land (s + q == r) \lor
                                      q = succ s \land p + s == r.
- intros. inversion H; clear H; intros; subst;
+ intros. inversion H; clear H; intros; destruct;
  autobatch depth = 4.
 qed.
 
@@ -57,13 +57,13 @@ qed.
 theorem nplus_inv_succ_2_3: \forall p,q,r.
                             (p + (succ q) == (succ r)) \to p + q == r.
  intros. 
- lapply linear nplus_inv_succ_2 to H. decompose. subst. autobatch.
+ lapply linear nplus_inv_succ_2 to H. decompose. destruct. autobatch.
 qed.
 
 theorem nplus_inv_succ_1_3: \forall p,q,r.
                             ((succ p) + q == (succ r)) \to p + q == r.
  intros. 
- lapply linear nplus_inv_succ_1 to H. decompose. subst. autobatch.
+ lapply linear nplus_inv_succ_1 to H. decompose. destruct. autobatch.
 qed.
 
 theorem nplus_inv_eq_2_3: \forall p,q. (p + q == q) \to p = zero.