update in basic_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_1 / nf2 / lift1.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_1/nf2/lift1.ma b/matita/matita/contribs/lambdadelta/basic_1/nf2/lift1.ma
index f2b078af0987b80fc53785cb783c8f7ebf87534b..9e680d7e8150b12c09c12e3894c2f2d7e626eba3 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_1/nf2/lift1.ma
+++ b/matita/matita/contribs/lambdadelta/basic_1/nf2/lift1.ma
@@ -18,7 +18,7 @@ include "basic_1/nf2/props.ma".
 
 include "basic_1/drop1/fwd.ma".
 
-theorem nf2_lift1:
+lemma nf2_lift1:
  \forall (e: C).(\forall (hds: PList).(\forall (c: C).(\forall (t: T).((drop1 
 hds c e) \to ((nf2 e t) \to (nf2 c (lift1 hds t)))))))
 \def