more work on dama

[helm.git] / helm / software / matita / library / nat / orders.ma

diff --git a/helm/software/matita/library/nat/orders.ma b/helm/software/matita/library/nat/orders.ma
index 799f8bf7c47b74c65575431e78d2f0b8f9662b9e..6dd8773f8820062586cacd3df6ebbea26afa8421 100644 (file)
--- a/helm/software/matita/library/nat/orders.ma
+++ b/helm/software/matita/library/nat/orders.ma
@@ -12,8 +12,6 @@
 (*                                                                        *)
 (**************************************************************************)
 
-set "baseuri" "cic:/matita/nat/orders".
-
 include "nat/nat.ma".
 include "higher_order_defs/ordering.ma".
 
@@ -156,9 +154,7 @@ elim n;
 [ simplify;
   apply le_O_n
 | simplify;
-  generalize in match H1;
-  clear H1;
-  elim m;
+  elim m in H1 ⊢ %;
   [ elim (not_le_Sn_O ? H1)
   | simplify;
     apply le_S_S_to_le;