include "ground/relocation/gr_ist_isi.ma".
include "ground/relocation/gr_after_ist.ma".
-(* RELATIONAL COMPOSITION FOR GENERIC RELOCATION MAPS ***********************************************************)
+(* RELATIONAL COMPOSITION FOR GENERIC RELOCATION MAPS ***********************)
-(* Forward lemmas on istot and isid **************************************************)
+(* Destructions with gr_ist and gr_isi **************************************)
(*** after_fwd_isid_sn *)
lemma gr_after_des_ist_eq_sn: