Definition bs_of_cfg := fst cfg.Definition share_of_cfg := fst (snd cfg).Definition fl_of_cfg := fst (snd (snd cfg)).Definition cnt_of_cfg := fst (snd (snd (snd cfg))).Definition negm_of_cfg := fst (snd (snd (snd (snd cfg)))).Definition orm_of_cfg := fst (snd (snd (snd (snd (snd cfg))))).Definition um_of_cfg := snd (snd (snd (snd (snd (snd cfg))))).

Lemma nodes_preserved_bs_bool_fun : forall (bs1 bs2 : BDDstate) (node : ad), BDDstate_OK bs1 -> BDDstate_OK bs2 -> nodes_preserved_bs bs1 bs2 -> node_OK bs1 node -> bool_fun_eq (bool_fun_of_BDD_bs bs2 node) (bool_fun_of_BDD_bs bs1 node).