X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2FLAMBDA-TYPES%2FLambdaDelta-1%2Fnf2%2Fdefs.ma;h=23868ee8bb503dc065e4f58af21daaad5488bce8;hb=eefb7b4c9f5c4c531199c95e4bb72d8b8c88bc2e;hp=2819de53b92525dc188446e333934c862757a00d;hpb=831af787465e1bff886e22ee14b68c8f1bb0177c;p=helm.git

diff --git a/helm/software/matita/contribs/LAMBDA-TYPES/LambdaDelta-1/nf2/defs.ma b/helm/software/matita/contribs/LAMBDA-TYPES/LambdaDelta-1/nf2/defs.ma
index 2819de53b..23868ee8b 100644
--- a/helm/software/matita/contribs/LAMBDA-TYPES/LambdaDelta-1/nf2/defs.ma
+++ b/helm/software/matita/contribs/LAMBDA-TYPES/LambdaDelta-1/nf2/defs.ma
@@ -24,3 +24,10 @@ definition nf2:
  \lambda (c: C).(\lambda (t1: T).(\forall (t2: T).((pr2 c t1 t2) \to (eq T t1 
 t2)))).
 
+definition nfs2:
+ C \to (TList \to Prop)
+\def
+ let rec nfs2 (c: C) (ts: TList) on ts: Prop \def (match ts with [TNil 
+\Rightarrow True | (TCons t ts0) \Rightarrow (land (nf2 c t) (nfs2 c ts0))]) 
+in nfs2.
+