X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_1%2Fnf2%2Fpr3.ma;h=5c6a686e908ddad6b7e0317dbcedad85389c2146;hb=8de8cf8adfa6fcda91047eb2c25535893ede046a;hp=8c602dfe0ec8e1b5d74e14560a87f8b34b8d00ae;hpb=d2caaf419cb6c92cb5ca8615f8eac4e12f3ab728;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_1/nf2/pr3.ma b/matita/matita/contribs/lambdadelta/basic_1/nf2/pr3.ma
index 8c602dfe0..5c6a686e9 100644
--- a/matita/matita/contribs/lambdadelta/basic_1/nf2/pr3.ma
+++ b/matita/matita/contribs/lambdadelta/basic_1/nf2/pr3.ma
@@ -18,7 +18,7 @@ include "basic_1/nf2/defs.ma".
 
 include "basic_1/pr3/pr3.ma".
 
-theorem nf2_pr3_unfold:
+lemma nf2_pr3_unfold:
  \forall (c: C).(\forall (t1: T).(\forall (t2: T).((pr3 c t1 t2) \to ((nf2 c 
 t1) \to (eq T t1 t2)))))
 \def