include "delayed_updating/notation/relations/black_rightarrow_if_3.ma".
include "ground/relocation/tr_uni.ma".
include "ground/xoa/ex_4_3.ma".
(* IMMEDIATE FOCUSED REDUCTION ************************************************)
include "delayed_updating/notation/relations/black_rightarrow_if_3.ma".
include "ground/relocation/tr_uni.ma".
include "ground/xoa/ex_4_3.ma".
(* IMMEDIATE FOCUSED REDUCTION ************************************************)