X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground%2Flib%2Fstream_tls_eq.ma;h=28ae10cf0859075a124b2ae558dbb5665e2a4a81;hb=8bbe582d87984526f40182c4409cbfd43108cb79;hp=ee230d2b6d3429c0aa29cbe88ff70644406a8f73;hpb=55c768d7e45babb300b5010463ba3196a68f1bbe;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/ground/lib/stream_tls_eq.ma b/matita/matita/contribs/lambdadelta/ground/lib/stream_tls_eq.ma
index ee230d2b6..28ae10cf0 100644
--- a/matita/matita/contribs/lambdadelta/ground/lib/stream_tls_eq.ma
+++ b/matita/matita/contribs/lambdadelta/ground/lib/stream_tls_eq.ma
@@ -17,10 +17,10 @@ include "ground/lib/stream_tls.ma".
 
 (* ITERATED TAIL FOR STREAMS ************************************************)
 
-(* Properties with stream_eq *)
+(* Constructions with stream_eq *********************************************)
 
 lemma stream_tls_eq_repl (A) (n):
-      stream_eq_repl A (λt1,t2. ⫰*[n] t1 ≗ ⫰*[n] t2).
+      stream_eq_repl A (λt1,t2. ⇂*[n] t1 ≗ ⇂*[n] t2).
 #A #n @(nat_ind_succ … n) -n //
 #n #IH * #n1 #t1 * #n2 #t2 #H
 elim (stream_eq_inv_cons_bi … H) /2 width=7 by/