- Procedural convertible rewrites in the conclusion are now detected and replaced...

[helm.git] / helm / software / matita / library / Z / times.ma

diff --git a/helm/software/matita/library/Z/times.ma b/helm/software/matita/library/Z/times.ma
index 742ef5462022e3be9a3cdc0f42f262a947c891fa..eefe4af7ead7d2f818216c44c6c9174fe298ccad 100644 (file)
--- a/helm/software/matita/library/Z/times.ma
+++ b/helm/software/matita/library/Z/times.ma
@@ -248,13 +248,3 @@ qed.
 variant distr_Ztimes_Zplus: \forall x,y,z.
 x * (y + z) = x*y + x*z \def
 distributive_Ztimes_Zplus.
-
-theorem eq_plus_Zplus: \forall n,m:nat. Z_of_nat (n+m) =
-Z_of_nat n + Z_of_nat m.
-intro.cases n;intro
-  [reflexivity
-  |cases m
-    [simplify.rewrite < plus_n_O.reflexivity
-    |simplify.reflexivity.
-    ]]
-qed.