let s be State of SCM+FSA; for p being the Instructions of SCM+FSA -valued ManySortedSet of NAT
for f being FinSeq-Location
for I being Program of SCM+FSA st I is_closed_on Initialized s,p & I is_halting_on Initialized s,p & not f in UsedInt*Loc I holds
(IExec (I,p,s)) . f = (Initialized s) . f
let p be the Instructions of SCM+FSA -valued ManySortedSet of NAT ; for f being FinSeq-Location
for I being Program of SCM+FSA st I is_closed_on Initialized s,p & I is_halting_on Initialized s,p & not f in UsedInt*Loc I holds
(IExec (I,p,s)) . f = (Initialized s) . f
let f be FinSeq-Location ; for I being Program of SCM+FSA st I is_closed_on Initialized s,p & I is_halting_on Initialized s,p & not f in UsedInt*Loc I holds
(IExec (I,p,s)) . f = (Initialized s) . f
let I be Program of SCM+FSA; ( I is_closed_on Initialized s,p & I is_halting_on Initialized s,p & not f in UsedInt*Loc I implies (IExec (I,p,s)) . f = (Initialized s) . f )
set a = f;
assume that
A1:
I is_closed_on Initialized s,p
and
A2:
I is_halting_on Initialized s,p
and
A3:
not f in UsedInt*Loc I
; (IExec (I,p,s)) . f = (Initialized s) . f
set Is = Initialized s;
set sI = s +* (Initialized I);
set pI = p +* I;
A4:
ProgramPart I = I
by RELAT_1:209;
( Initialize I c= Initialized I & Initialized I c= s +* (Initialized I) )
by FUNCT_4:26, SCMFSA8C:19;
then A5:
Initialize I c= s +* (Initialized I)
by XBOOLE_1:1;
A6:
p +* I halts_on (Initialized s) +* (Initialize I)
by A2, SCMFSA7B:def 8, A4;
A7:
dom (s | NAT) c= NAT
by RELAT_1:87;
A8:
dom (s | NAT) misses Data-Locations SCM+FSA
by A7, XBOOLE_1:63, COMPOS_1:51;
A9:
s +* (Initialized I) = (Initialized s) +* (Initialize I)
by SCMFSA8A:13;
then
for m being Element of NAT st m < LifeSpan ((p +* I),(s +* (Initialized I))) holds
IC (Comput ((p +* I),(s +* (Initialized I)),m)) in dom I
by A1, SCMFSA7B:def 7, A4;
then A10:
(Comput ((p +* I),(s +* (Initialized I)),(LifeSpan ((p +* I),(s +* (Initialized I)))))) . f = (s +* (Initialized I)) . f
by A3, SF_MASTR:71, A5, FUNCT_4:26;
DataPart (s +* (Initialized I)) = DataPart (Initialized s)
by SCMFSA8B:5;
then A11:
(s +* (Initialized I)) . f = (Initialized s) . f
by SCMFSA6A:38;
DataPart (IExec (I,p,s)) =
DataPart ((Result ((p +* I),(s +* (Initialized I)))) +* (s | NAT))
by SCMFSA6B:def 1
.=
DataPart (Result ((p +* I),(s +* (Initialized I))))
by A8, FUNCT_4:76
.=
DataPart (Comput ((p +* I),(s +* (Initialized I)),(LifeSpan ((p +* I),(s +* (Initialized I))))))
by A9, A6, EXTPRO_1:23
;
hence
(IExec (I,p,s)) . f = (Initialized s) . f
by A10, A11, SCMFSA6A:38; verum