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update in ground
[helm.git] / matita / matita / contribs / lambdadelta / ground / relocation / gr_isf_pushs.ma
index 014d0b3a52dc78a6d50c3b908c98856e2b03f146..4e8e1d2b1980ebd0515be229a81b99884b26f7c0 100644 (file)
 include "ground/relocation/gr_pushs.ma".
 include "ground/relocation/gr_isf.ma".
 
-(* FINITE COLENGTH CONDITION FOR GENERIC RELOCATION MAPS *)
+(* FINITE COLENGTH CONDITION FOR GENERIC RELOCATION MAPS ********************)
 
-(* Properties with iterated push ********************************************)
+(* Constructions with gr_pushs **********************************************)
 
 (*** isfin_pushs *)
 lemma gr_isf_pushs (n) (f): 𝐅❪f❫ → 𝐅❪⫯*[n]f❫.
 #n @(nat_ind_succ … n) -n /3 width=3 by gr_isf_push/
 qed.
 
-(* Inversion lemmas with iterated push **************************************)
+(* Inversions with gr_pushs *************************************************)
 
 (*** isfin_inv_pushs *)
 lemma gr_isf_inv_pushs (n) (g): 𝐅❪⫯*[n]g❫ → 𝐅❪g❫.