- matitaInit matitaprover matitadep matitamake:

[helm.git] / matita / contribs / LAMBDA-TYPES / LambdaDelta-1 / nf2 / defs.ma

diff --git a/matita/contribs/LAMBDA-TYPES/LambdaDelta-1/nf2/defs.ma b/matita/contribs/LAMBDA-TYPES/LambdaDelta-1/nf2/defs.ma
index 2819de53b92525dc188446e333934c862757a00d..23868ee8bb503dc065e4f58af21daaad5488bce8 100644 (file)
--- a/matita/contribs/LAMBDA-TYPES/LambdaDelta-1/nf2/defs.ma
+++ b/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.
+