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diff --git a/matita/matita/lib/extraction.ma b/matita/matita/lib/extraction.ma
index bb6af07e00ea222697d6ccebc8069d00df791b80..a1c49f8f0c2f35b04370f11d8cd4a2b1cd060dfe 100644 (file)
--- a/matita/matita/lib/extraction.ma
+++ b/matita/matita/lib/extraction.ma
@@ -155,6 +155,9 @@ coinductive stream: Type[0] ≝ scons : nat → stream → stream.
 
 let corec div (n:nat) : stream ≝ scons n (div (S n)).
 
+definition rtest2 : nat → stream → nat ≝
+ λm,s. match s with [ scons n l ⇒ m + n ].
+
 (*
 let rec mkterm (n:nat) : nat ≝
  match n with