let s be State of SCM+FSA ; for I being InitHalting Program of SCM+FSA
for a being read-write Int-Location st not a in UsedIntLoc I holds
(IExec I,s) . a = s . a
let I be InitHalting Program of SCM+FSA ; for a being read-write Int-Location st not a in UsedIntLoc I holds
(IExec I,s) . a = s . a
let a be read-write Int-Location ; ( not a in UsedIntLoc I implies (IExec I,s) . a = s . a )
A1:
not a in dom (Initialized I)
by SCMFSA6A:48;
not a in NAT
by SCMFSA_2:84;
then
( IExec I,s = (Result (ProgramPart (s +* (Initialized I))),(s +* (Initialized I))) +* (s | NAT ) & not a in dom (s | NAT ) )
by RELAT_1:86, SCMFSA6B:def 1;
then A2:
(IExec I,s) . a = (Result (ProgramPart (s +* (Initialized I))),(s +* (Initialized I))) . a
by FUNCT_4:12;
ProgramPart (s +* (Initialized I)) halts_on s +* (Initialized I)
by Th5, FUNCT_4:26;
then consider n being Element of NAT such that
A3:
Result (ProgramPart (s +* (Initialized I))),(s +* (Initialized I)) = Comput (ProgramPart (s +* (Initialized I))),(s +* (Initialized I)),n
and
CurInstr (ProgramPart (s +* (Initialized I))),(Result (ProgramPart (s +* (Initialized I))),(s +* (Initialized I))) = halt SCM+FSA
by AMI_1:def 22;
Initialized I c= s +* (Initialized I)
by FUNCT_4:26;
then A4:
( I +* (Start-At 0 ,SCM+FSA ) c= s +* (Initialized I) & ( for m being Element of NAT st m < n holds
IC (Comput (ProgramPart (s +* (Initialized I))),(s +* (Initialized I)),m) in dom I ) )
by Def1, SCMFSA6B:8;
assume
not a in UsedIntLoc I
; (IExec I,s) . a = s . a
hence (IExec I,s) . a =
(s +* (Initialized I)) . a
by A2, A3, A4, SF_MASTR:69
.=
s . a
by A1, FUNCT_4:12
;
verum