include "ground/relocation/gr_tls.ma".
include "ground/relocation/gr_isf_tl.ma".
-(* FINITE COLENGTH CONDITION FOR GENERIC RELOCATION MAPS *)
+(* FINITE COLENGTH CONDITION FOR GENERIC RELOCATION MAPS ********************)
-(* Properties with iterated tail **************************************)
+(* Constructions with gr_tls ************************************************)
lemma gr_isf_tls (n) (f): 𝐅❪f❫ → 𝐅❪⫱*[n]f❫.
#n @(nat_ind_succ … n) -n /3 width=1 by gr_isf_tl/
qed.
-(* Inversion lemmas with iterated tail **************************************)
+(* Inversions with gr_tls ***************************************************)
(*** isfin_inv_tls *)
lemma gr_isf_inv_tls (n) (g): 𝐅❪⫱*[n]g❫ → 𝐅❪g❫.