update in ground

[helm.git] / matita / matita / contribs / lambdadelta / ground / relocation / tr_uni_compose.ma

diff --git a/matita/matita/contribs/lambdadelta/ground/relocation/tr_uni_compose.ma b/matita/matita/contribs/lambdadelta/ground/relocation/tr_uni_compose.ma
index 0648738191ed59e9f95f07bcd955c1827e2482c6..3d329e795f23b79be89abb02e386945bdaed02e5 100644 (file)
--- a/matita/matita/contribs/lambdadelta/ground/relocation/tr_uni_compose.ma
+++ b/matita/matita/contribs/lambdadelta/ground/relocation/tr_uni_compose.ma
@@ -13,11 +13,35 @@
 (**************************************************************************)
 
 include "ground/relocation/tr_uni_pap.ma".
-include "ground/relocation/tr_compose_pap.ma".
-include "ground/relocation/tr_pap_eq.ma".
+include "ground/relocation/tr_id_compose.ma".
+include "ground/relocation/tr_compose_pn.ma".
+include "ground/lib/stream_hdtl_eq.ma".
 
 (* UNIFORM ELEMENTS FOR TOTAL RELOCATION MAPS *******************************)
 
+(* Constructions with tr_compose and tr_tl **********************************)
+
+lemma tr_tl_compose_uni_sn (n) (f):
+      ⇂f ≗ ⇂(𝐮❨n❩∘f).
+#n @(nat_ind_succ … n) -n //
+/2 width=1 by stream_tl_eq_repl/
+qed.
+
+(* Constructions with tr_compose and tr_tls *********************************)
+
+lemma tr_tl_compose_uni_dx (f) (n):
+      ⇂*[↑n]f ≗ ⇂(f∘𝐮❨n❩).
+// qed.
+
+lemma tr_tls_compose_uni_dx (f) (p) (n):
+      ⇂*[p+n]f ≗ ⇂*[p](f∘𝐮❨n❩).
+#f #p elim p -p [| #p #IH ] #n
+[ <nrplus_unit_sn //
+| <nrplus_succ_sn >nsucc_inj >nsucc_inj
+  /2 width=3 by stream_tl_eq_repl/
+]
+qed.
+
 (* Main constructions with tr_compose and tr_tls ****************************)
 
 theorem tr_compose_uni_dx (f) (p):