(*Construction used in make_initial_core: put incoming injection
  into foreign/unknown component as specified, initialize local_of,
  locBlocksSrc/Tgt, and pubBlocksSrc/Tgt as empty*)
Definition initial_SM (extS extT frgnS frgnT: block->bool)
                     (extern:meminj): SM_Injection :=
  Build_SM_Injection
      (*locBlocksSrc/Tgt:*) (fun b => false) (fun b => false)
      (*pubBlocksSrc/Tgt:*)(fun b => false) (fun b => false)
      (*local:*)(fun b => None)
      (*extBlocksSrc/Tgt:*) extS extT
      (*frgnBlocksSrc/Tgt:*) frgnS frgnT
      extern.

Lemma initial_SM_wd: forall extS extT frgnS frgnT extern (EXT: forall b1 b2 d, extern b1 =Some(b2,d) -> extS b1 = true /\ extT b2 = true) (F: forall b1, frgnS b1 = true -> exists b2 z, extern b1 = Some (b2, z) /\ frgnT b2 = true) (FS: forall b, frgnS b = true -> extS b = true) (FT: forall b, frgnT b = true -> extT b = true), SM_wd (initial_SM extS extT frgnS frgnT extern).