X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground%2Flib%2Fstream_tls.ma;h=185de605e6ac1b4ec96984630311e0ca8d226b70;hb=55c768d7e45babb300b5010463ba3196a68f1bbe;hp=9f34ba81d06f5b1a723571a005b11f2be8f22654;hpb=15212e44902f25536f6e2de4bec4cedcd9a9804d;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/ground/lib/stream_tls.ma b/matita/matita/contribs/lambdadelta/ground/lib/stream_tls.ma
index 9f34ba81d..185de605e 100644
--- a/matita/matita/contribs/lambdadelta/ground/lib/stream_tls.ma
+++ b/matita/matita/contribs/lambdadelta/ground/lib/stream_tls.ma
@@ -46,9 +46,3 @@ qed.
 lemma stream_tls_swap (A) (n) (t):
       (⫰*[n]⫰t) = ⫰*{A}[↑n]t.
 // qed.
-
-lemma stream_tls_eq_repl (A) (n):
-      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 … H) /2 width=7 by/
-qed.