X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground%2Frelocation%2Fgr_isu_tl.ma;h=8a7b07df1792ffe56c6f8901acbb3dc9f7c17228;hb=8bbe582d87984526f40182c4409cbfd43108cb79;hp=a0cb8dbb9c2020ee6040e72345f06e2e546479aa;hpb=55c768d7e45babb300b5010463ba3196a68f1bbe;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/ground/relocation/gr_isu_tl.ma b/matita/matita/contribs/lambdadelta/ground/relocation/gr_isu_tl.ma
index a0cb8dbb9..8a7b07df1 100644
--- a/matita/matita/contribs/lambdadelta/ground/relocation/gr_isu_tl.ma
+++ b/matita/matita/contribs/lambdadelta/ground/relocation/gr_isu_tl.ma
@@ -15,18 +15,18 @@
 include "ground/relocation/gr_tl.ma".
 include "ground/relocation/gr_isu.ma".
 
-(* UNIFORMITY CONDITION FOR GENERIC RELOCATION MAPS ***********************************************************)
+(* UNIFORMITY CONDITION FOR GENERIC RELOCATION MAPS *************************)
 
-(* Properties with tail *****************************************************)
+(* Constructions with gr_tl *************************************************)
 
-lemma gr_isu_tl (f): 𝐔❪f❫ → 𝐔❪⫱f❫.
+lemma gr_isu_tl (f): 𝐔❪f❫ → 𝐔❪⫰f❫.
 #f cases (gr_map_split_tl f) * #H
 [ /3 width=3 by gr_isu_inv_push, gr_isu_isi/
 | /2 width=3 by gr_isu_inv_next/
 ]
 qed.
 
-(* Advanced inversion lemmas ***************************************************)
+(* Advanced inversions ******************************************************)
 
 (*** isuni_split *)
 lemma gr_isu_split (g): 𝐔❪g❫ → ∨∨ (∃∃f. 𝐈❪f❫ & ⫯f = g) | (∃∃f.𝐔❪f❫ & ↑f = g).