update in basic_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_1 / csubv / drop.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_1/csubv/drop.ma b/matita/matita/contribs/lambdadelta/basic_1/csubv/drop.ma
index 12c78237d0966a3db5bf8165b6081c0a0786f466..0fb7bbceb39d14756d6123e486714dc93085bec3 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_1/csubv/drop.ma
+++ b/matita/matita/contribs/lambdadelta/basic_1/csubv/drop.ma
@@ -20,7 +20,7 @@ include "basic_1/csubv/fwd.ma".
 
 include "basic_1/drop/fwd.ma".
 
-theorem csubv_drop_conf:
+lemma csubv_drop_conf:
  \forall (c1: C).(\forall (c2: C).((csubv c1 c2) \to (\forall (e1: 
 C).(\forall (h: nat).((drop h O c1 e1) \to (ex2 C (\lambda (e2: C).(csubv e1 
 e2)) (\lambda (e2: C).(drop h O c2 e2))))))))