X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_1%2Fpc3%2Fsubst1.ma;h=1df35129b7e4e61eea5d4032d87389c2998593a7;hb=57ae1762497a5f3ea75740e2908e04adb8642cc2;hp=525c45469b95548fdc886bfa59578e26c1aff355;hpb=639e798161afea770f41d78673c0fe3be4125beb;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_1/pc3/subst1.ma b/matita/matita/contribs/lambdadelta/basic_1/pc3/subst1.ma
index 525c45469..1df35129b 100644
--- a/matita/matita/contribs/lambdadelta/basic_1/pc3/subst1.ma
+++ b/matita/matita/contribs/lambdadelta/basic_1/pc3/subst1.ma
@@ -18,7 +18,7 @@ include "basic_1/pc3/props.ma".
 
 include "basic_1/pr3/subst1.ma".
 
-theorem pc3_gen_cabbr:
+lemma pc3_gen_cabbr:
  \forall (c: C).(\forall (t1: T).(\forall (t2: T).((pc3 c t1 t2) \to (\forall 
 (e: C).(\forall (u: T).(\forall (d: nat).((getl d c (CHead e (Bind Abbr) u)) 
 \to (\forall (a0: C).((csubst1 d u c a0) \to (\forall (a: C).((drop (S O) d