let f be FinSeq-Location ; for s being State of
for I being parahalting Program of st not f in UsedInt*Loc I holds
(IExec I,s) . f = s . f
let s be State of ; for I being parahalting Program of st not f in UsedInt*Loc I holds
(IExec I,s) . f = s . f
let I be parahalting Program of ; ( not f in UsedInt*Loc I implies (IExec I,s) . f = s . f )
assume A1:
not f in UsedInt*Loc I
; (IExec I,s) . f = s . f
ProgramPart (s +* (Initialized I)) halts_on s +* (Initialized I)
by Th19, FUNCT_4:26;
then consider n being Element of NAT such that
A2:
Result (s +* (Initialized I)) = Computation (s +* (Initialized I)),n
and
CurInstr (Result (s +* (Initialized I))) = halt SCM+FSA
by AMI_1:def 22;
A3:
not f in dom (Initialized I)
by SCMFSA6A:49;
f is not Instruction-Location of SCM+FSA
by SCMFSA_2:85;
then
not f in NAT
by AMI_1:def 4;
then
not f in dom (s | NAT )
by RELAT_1:86;
then A4:
(IExec I,s) . f = (Result (s +* (Initialized I))) . f
by FUNCT_4:12;
A5:
I +* (Start-At (insloc 0 )) c= s +* (Initialized I)
by Th8, FUNCT_4:26;
then
for m being Element of NAT st m < n holds
IC (Computation (s +* (Initialized I)),m) in dom I
by Def2;
hence (IExec I,s) . f =
(s +* (Initialized I)) . f
by A1, A4, A2, A5, SF_MASTR:71
.=
s . f
by A3, FUNCT_4:12
;
verum