(***********************************************************************)

Goal forall mu (WD: SM_wd mu) m1 m2 m2'
(U: Mem.unchanged_on (local_out_of_reach mu m1) m2 m2'),
Mem.unchanged_on (fun b ofs => pubBlocksTgt mu b = true /\
                  loc_out_of_reach (pub_of mu) m1 b ofs) m2 m2'.Goal forall mu (WD: SM_wd mu) m1 m2 m2'
(U: Mem.unchanged_on (local_out_of_reach mu m1) m2 m2'),
Mem.unchanged_on (fun b ofs => locBlocksTgt mu b = true /\
                    pubBlocksTgt mu b = false) m2 m2'.Goal forall mu m1 m2 m2' (WD:SM_wd mu)
  (U1: Mem.unchanged_on (fun b ofs => locBlocksTgt mu b = true /\
                    pubBlocksTgt mu b = false) m2 m2')
  (U2: Mem.unchanged_on (fun b ofs => pubBlocksTgt mu b = true /\
                  loc_out_of_reach (pub_of mu) m1 b ofs) m2 m2'),
Mem.unchanged_on (local_out_of_reach mu m1) m2 m2'.

Lemma vis_restrict_sm: forall mu X, vis (restrict_sm mu X) = vis mu.