X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground%2Flib%2Fstream_hdtl.ma;h=a23cb4ca8caab2ef31e6eeb7598ead4986d5cf10;hb=dc605ae41c39773f55381f241b1ed3db4acf5edd;hp=5ddd583d1112a74493c882a3f2506286f38f9428;hpb=55c768d7e45babb300b5010463ba3196a68f1bbe;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/ground/lib/stream_hdtl.ma b/matita/matita/contribs/lambdadelta/ground/lib/stream_hdtl.ma
index 5ddd583d1..a23cb4ca8 100644
--- a/matita/matita/contribs/lambdadelta/ground/lib/stream_hdtl.ma
+++ b/matita/matita/contribs/lambdadelta/ground/lib/stream_hdtl.ma
@@ -12,7 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
-include "ground/notation/functions/downspoon_2.ma".
+include "ground/notation/functions/downdashedarrow_2.ma".
 include "ground/lib/stream.ma".
 
 (* HEAD AND TAIL FOR STREAMS ************************************************)
@@ -27,7 +27,7 @@ defined.
 
 interpretation
   "tail (streams)"
-  'DownSpoon A t = (stream_tl A t).
+  'DownDashedArrow A t = (stream_tl A t).
 
 (* Basic constructions ******************************************************)
 
@@ -36,10 +36,10 @@ lemma stream_hd_cons (A) (a) (t):
 // qed.
 
 lemma stream_tl_cons (A) (a) (t):
-      t = ⫰{A}(a⨮t).
+      t = ⇣{A}(a⨮t).
 // qed.
 
 lemma stream_split_tl (A) (t):
-      stream_hd A t ⨮ ⫰t = t.
+      stream_hd A t ⨮ ⇣t = t.
 #A * //
 qed.