let P be Instruction-Sequence of SCMPDS; for s, sm being State of SCMPDS
for I being halt-free shiftable Program of
for a being Int_position
for i being Integer
for m being Nat st I is_closed_on s,P & I is_halting_on s,P & s . (DataLoc ((s . a),i)) > 0 & m = (LifeSpan ((P +* (stop I)),(Initialize s))) + 2 & sm = Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),m) holds
( DataPart sm = DataPart (IExec (I,P,(Initialize s))) & Initialize sm = sm )
let s, sm be State of SCMPDS; for I being halt-free shiftable Program of
for a being Int_position
for i being Integer
for m being Nat st I is_closed_on s,P & I is_halting_on s,P & s . (DataLoc ((s . a),i)) > 0 & m = (LifeSpan ((P +* (stop I)),(Initialize s))) + 2 & sm = Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),m) holds
( DataPart sm = DataPart (IExec (I,P,(Initialize s))) & Initialize sm = sm )
let I be halt-free shiftable Program of ; for a being Int_position
for i being Integer
for m being Nat st I is_closed_on s,P & I is_halting_on s,P & s . (DataLoc ((s . a),i)) > 0 & m = (LifeSpan ((P +* (stop I)),(Initialize s))) + 2 & sm = Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),m) holds
( DataPart sm = DataPart (IExec (I,P,(Initialize s))) & Initialize sm = sm )
let a be Int_position; for i being Integer
for m being Nat st I is_closed_on s,P & I is_halting_on s,P & s . (DataLoc ((s . a),i)) > 0 & m = (LifeSpan ((P +* (stop I)),(Initialize s))) + 2 & sm = Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),m) holds
( DataPart sm = DataPart (IExec (I,P,(Initialize s))) & Initialize sm = sm )
let i be Integer; for m being Nat st I is_closed_on s,P & I is_halting_on s,P & s . (DataLoc ((s . a),i)) > 0 & m = (LifeSpan ((P +* (stop I)),(Initialize s))) + 2 & sm = Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),m) holds
( DataPart sm = DataPart (IExec (I,P,(Initialize s))) & Initialize sm = sm )
let m be Nat; ( I is_closed_on s,P & I is_halting_on s,P & s . (DataLoc ((s . a),i)) > 0 & m = (LifeSpan ((P +* (stop I)),(Initialize s))) + 2 & sm = Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),m) implies ( DataPart sm = DataPart (IExec (I,P,(Initialize s))) & Initialize sm = sm ) )
set b = DataLoc ((s . a),i);
set WH = while>0 (a,i,I);
set iWH = stop (while>0 (a,i,I));
set IsI = stop I;
set i1 = (a,i) <=0_goto ((card I) + 2);
set i2 = goto (- ((card I) + 1));
set s2 = Initialize s;
set P2 = P +* (stop I);
set s3 = Initialize s;
set P3 = P +* (stop (while>0 (a,i,I)));
set s4 = Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),1);
set P4 = P +* (stop (while>0 (a,i,I)));
assume that
A1:
I is_closed_on s,P
and
A2:
I is_halting_on s,P
and
A3:
s . (DataLoc ((s . a),i)) > 0
and
A4:
m = (LifeSpan ((P +* (stop I)),(Initialize s))) + 2
and
A5:
sm = Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),m)
; ( DataPart sm = DataPart (IExec (I,P,(Initialize s))) & Initialize sm = sm )
A6:
stop I c= P +* (stop I)
by FUNCT_4:25;
A7:
stop (while>0 (a,i,I)) c= P +* (stop (while>0 (a,i,I)))
by FUNCT_4:25;
while>0 (a,i,I) c= stop (while>0 (a,i,I))
by AFINSQ_1:74;
then A8:
while>0 (a,i,I) c= P +* (stop (while>0 (a,i,I)))
by A7, XBOOLE_1:1;
Shift (I,1) c= while>0 (a,i,I)
by Lm2;
then A9:
Shift (I,1) c= P +* (stop (while>0 (a,i,I)))
by A8, XBOOLE_1:1;
A10:
while>0 (a,i,I) = ((a,i) <=0_goto ((card I) + 2)) ';' (I ';' (goto (- ((card I) + 1))))
by Lm1;
A11: Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),(0 + 1)) =
Following ((P +* (stop (while>0 (a,i,I)))),(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),0)))
by EXTPRO_1:3
.=
Exec (((a,i) <=0_goto ((card I) + 2)),(Initialize s))
by A10, SCMPDS_6:11
;
set m2 = LifeSpan ((P +* (stop I)),(Initialize s));
set s5 = Comput ((P +* (stop (while>0 (a,i,I)))),(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),1)),(LifeSpan ((P +* (stop I)),(Initialize s))));
set P5 = P +* (stop (while>0 (a,i,I)));
set l1 = (card I) + 1;
A12:
IC (Initialize s) = 0
by MEMSTR_0:def 11;
A13:
not DataLoc ((s . a),i) in dom (Start-At (0,SCMPDS))
by SCMPDS_4:18;
not a in dom (Start-At (0,SCMPDS))
by SCMPDS_4:18;
then A14: (Initialize s) . (DataLoc (((Initialize s) . a),i)) =
(Initialize s) . (DataLoc ((s . a),i))
by FUNCT_4:11
.=
s . (DataLoc ((s . a),i))
by A13, FUNCT_4:11
;
set m3 = (LifeSpan ((P +* (stop I)),(Initialize s))) + 1;
set s6 = Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),((LifeSpan ((P +* (stop I)),(Initialize s))) + 1));
set P6 = P +* (stop (while>0 (a,i,I)));
A15:
Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),((LifeSpan ((P +* (stop I)),(Initialize s))) + 1)) = Comput ((P +* (stop (while>0 (a,i,I)))),(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),1)),(LifeSpan ((P +* (stop I)),(Initialize s))))
by EXTPRO_1:4;
set s7 = Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),(((LifeSpan ((P +* (stop I)),(Initialize s))) + 1) + 1));
(card I) + 1 < (card I) + 2
by XREAL_1:6;
then A16:
(card I) + 1 in dom (while>0 (a,i,I))
by SCMPDS_8:18;
A17:
I is_closed_on Initialize s,P +* (stop I)
by A1, SCMPDS_6:24;
for x being Int_position holds (Initialize s) . x = (Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),1)) . x
by A11, SCMPDS_2:56;
then A18:
DataPart (Initialize s) = DataPart (Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),1))
by SCMPDS_4:8;
A19:
P +* (stop I) halts_on Initialize s
by A2, SCMPDS_6:def 3;
(P +* (stop I)) +* (stop I) halts_on Initialize (Initialize s)
by A2, SCMPDS_6:def 3;
then A20:
I is_halting_on Initialize s,P +* (stop I)
by SCMPDS_6:def 3;
A21:
IC (Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),1)) = 0 + 1
by A3, A12, A11, A14, SCMPDS_2:56;
then
DataPart (Comput ((P +* (stop I)),(Initialize s),(LifeSpan ((P +* (stop I)),(Initialize s))))) = DataPart (Comput ((P +* (stop (while>0 (a,i,I)))),(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),1)),(LifeSpan ((P +* (stop I)),(Initialize s)))))
by A6, A20, A17, A18, A9, SCMPDS_7:18;
then A22: DataPart (Comput ((P +* (stop (while>0 (a,i,I)))),(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),1)),(LifeSpan ((P +* (stop I)),(Initialize s))))) =
DataPart (Result ((P +* (stop I)),(Initialize s)))
by A19, EXTPRO_1:23
.=
DataPart (IExec (I,P,(Initialize s)))
by SCMPDS_4:def 5
;
A23:
IC (Comput ((P +* (stop (while>0 (a,i,I)))),(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),1)),(LifeSpan ((P +* (stop I)),(Initialize s))))) = (card I) + 1
by A6, A20, A17, A21, A18, A9, SCMPDS_7:18;
then A24: CurInstr ((P +* (stop (while>0 (a,i,I)))),(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),((LifeSpan ((P +* (stop I)),(Initialize s))) + 1)))) =
(P +* (stop (while>0 (a,i,I)))) . ((card I) + 1)
by A15, PBOOLE:143
.=
(while>0 (a,i,I)) . ((card I) + 1)
by A16, A8, GRFUNC_1:2
.=
goto (- ((card I) + 1))
by SCMPDS_8:19
;
A25: Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),(((LifeSpan ((P +* (stop I)),(Initialize s))) + 1) + 1)) =
Following ((P +* (stop (while>0 (a,i,I)))),(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),((LifeSpan ((P +* (stop I)),(Initialize s))) + 1))))
by EXTPRO_1:3
.=
Exec ((goto (- ((card I) + 1))),(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),((LifeSpan ((P +* (stop I)),(Initialize s))) + 1))))
by A24
;
now for x being Int_position holds sm . x = (Comput ((P +* (stop (while>0 (a,i,I)))),(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),1)),(LifeSpan ((P +* (stop I)),(Initialize s))))) . xlet x be
Int_position;
sm . x = (Comput ((P +* (stop (while>0 (a,i,I)))),(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),1)),(LifeSpan ((P +* (stop I)),(Initialize s))))) . xthus sm . x =
(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),((LifeSpan ((P +* (stop I)),(Initialize s))) + 1))) . x
by A4, A5, A25, SCMPDS_2:54
.=
(Comput ((P +* (stop (while>0 (a,i,I)))),(Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),1)),(LifeSpan ((P +* (stop I)),(Initialize s))))) . x
by EXTPRO_1:4
;
verum end;
hence
DataPart sm = DataPart (IExec (I,P,(Initialize s)))
by A22, SCMPDS_4:8; Initialize sm = sm
IC (Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),(((LifeSpan ((P +* (stop I)),(Initialize s))) + 1) + 1))) =
ICplusConst ((Comput ((P +* (stop (while>0 (a,i,I)))),(Initialize s),((LifeSpan ((P +* (stop I)),(Initialize s))) + 1))),(0 - ((card I) + 1)))
by A25, SCMPDS_2:54
.=
0
by A23, A15, SCMPDS_7:1
;
hence
Initialize sm = sm
by A4, A5, MEMSTR_0:46; verum