X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground%2Frelocation%2Fgr_nat_uni.ma;h=0812fab2ef002437372284d0fc0c6fd86c5d26b7;hp=0a79bbc18635aaef750e5596379f66b6ea49d95c;hb=2ed8d2abcc3b0687141b627061b63350a0b200bd;hpb=b367de0252e88d6b0476648d5ceac7e4aeffca27

diff --git a/matita/matita/contribs/lambdadelta/ground/relocation/gr_nat_uni.ma b/matita/matita/contribs/lambdadelta/ground/relocation/gr_nat_uni.ma
index 0a79bbc18..0812fab2e 100644
--- a/matita/matita/contribs/lambdadelta/ground/relocation/gr_nat_uni.ma
+++ b/matita/matita/contribs/lambdadelta/ground/relocation/gr_nat_uni.ma
@@ -16,16 +16,16 @@ include "ground/arith/nat_plus_rplus.ma".
 include "ground/relocation/gr_pat_uni.ma".
 include "ground/relocation/gr_nat_nat.ma".
 
-(* NON-NEGATIVE APPLICATION FOR GENERIC RELOCATION MAPS *****************************)
+(* NON-NEGATIVE APPLICATION FOR GENERIC RELOCATION MAPS *********************)
 
-(* Properties with uniform relocations **************************************)
+(* Constructions with gr_uni ************************************************)
 
 lemma gr_nat_uni (n) (l):
       @↑❪l,𝐮❨n❩❫ ≘ l+n.
 /2 width=1 by gr_nat_pred_bi/
 qed.
 
-(* Inversion lemmas with uniform relocations ********************************)
+(* Inversions with gr_uni ***************************************************)
 
 lemma gr_nat_inv_uni (n) (l) (k):
       @↑❪l,𝐮❨n❩❫ ≘ k → k = l+n.