let s be State of SCMPDS ; :: thesis: for I being Program of SCMPDS
for a, c being Int_position
for i being Integer st s . (DataLoc (s . a),i) = 0 holds
IExec (while<>0 a,i,I),s = s +* (Start-At (inspos ((card I) + 3)))
let I be Program of SCMPDS ; :: thesis: for a, c being Int_position
for i being Integer st s . (DataLoc (s . a),i) = 0 holds
IExec (while<>0 a,i,I),s = s +* (Start-At (inspos ((card I) + 3)))
let a, c be Int_position ; :: thesis: for i being Integer st s . (DataLoc (s . a),i) = 0 holds
IExec (while<>0 a,i,I),s = s +* (Start-At (inspos ((card I) + 3)))
let i be Integer; :: thesis: ( s . (DataLoc (s . a),i) = 0 implies IExec (while<>0 a,i,I),s = s +* (Start-At (inspos ((card I) + 3))) )
set b = DataLoc (s . a),i;
assume A1:
s . (DataLoc (s . a),i) = 0
; :: thesis: IExec (while<>0 a,i,I),s = s +* (Start-At (inspos ((card I) + 3)))
set i1 = a,i <>0_goto 2;
set i2 = goto ((card I) + 2);
set i3 = goto (- ((card I) + 2));
set WHL = while<>0 a,i,I;
set pWH = stop (while<>0 a,i,I);
set iWH = Initialized (stop (while<>0 a,i,I));
set s3 = s +* (Initialized (stop (while<>0 a,i,I)));
set s4 = Computation (s +* (Initialized (stop (while<>0 a,i,I)))),1;
set s5 = Computation (s +* (Initialized (stop (while<>0 a,i,I)))),2;
A2:
IC (s +* (Initialized (stop (while<>0 a,i,I)))) = inspos 0
by SCMPDS_6:21;
A3:
Initialized (stop (while<>0 a,i,I)) c= s +* (Initialized (stop (while<>0 a,i,I)))
by FUNCT_4:26;
then A4:
stop (while<>0 a,i,I) c= Computation (s +* (Initialized (stop (while<>0 a,i,I)))),1
by AMI_1:81, SCMPDS_4:57;
A5:
stop (while<>0 a,i,I) c= Computation (s +* (Initialized (stop (while<>0 a,i,I)))),2
by A3, AMI_1:81, SCMPDS_4:57;
A6:
not DataLoc (s . a),i in dom (Initialized (stop (while<>0 a,i,I)))
by SCMPDS_4:31;
A7:
while<>0 a,i,I = (a,i <>0_goto 2) ';' (((goto ((card I) + 2)) ';' I) ';' (goto (- ((card I) + 2))))
by Lm10;
A8: Computation (s +* (Initialized (stop (while<>0 a,i,I)))),(0 + 1) =
Following (Computation (s +* (Initialized (stop (while<>0 a,i,I)))),0 )
by AMI_1:14
.=
Following (s +* (Initialized (stop (while<>0 a,i,I))))
by AMI_1:13
.=
Exec (a,i <>0_goto 2),(s +* (Initialized (stop (while<>0 a,i,I))))
by A7, SCMPDS_6:22
;
A9:
inspos 1 in dom (while<>0 a,i,I)
by Th14;
then
inspos 1 in dom (stop (while<>0 a,i,I))
by SCMPDS_6:18;
then A10: (Computation (s +* (Initialized (stop (while<>0 a,i,I)))),1) . (inspos 1) =
(stop (while<>0 a,i,I)) . (inspos 1)
by A4, GRFUNC_1:8
.=
(while<>0 a,i,I) . (inspos 1)
by A9, SCMPDS_6:19
.=
goto ((card I) + 2)
by Th15
;
set SAl = Start-At (inspos ((card I) + 3));
A11:
dom (s | NAT ) = NAT
by SCMPDS_6:1;
not a in dom (Initialized (stop (while<>0 a,i,I)))
by SCMPDS_4:31;
then (s +* (Initialized (stop (while<>0 a,i,I)))) . (DataLoc ((s +* (Initialized (stop (while<>0 a,i,I)))) . a),i) =
(s +* (Initialized (stop (while<>0 a,i,I)))) . (DataLoc (s . a),i)
by FUNCT_4:12
.=
0
by A1, A6, FUNCT_4:12
;
then A12: IC (Computation (s +* (Initialized (stop (while<>0 a,i,I)))),1) =
Next (IC (s +* (Initialized (stop (while<>0 a,i,I)))))
by A8, SCMPDS_2:67
.=
inspos (0 + 1)
by A2
;
A13: Computation (s +* (Initialized (stop (while<>0 a,i,I)))),(1 + 1) =
Following (Computation (s +* (Initialized (stop (while<>0 a,i,I)))),1)
by AMI_1:14
.=
Exec (goto ((card I) + 2)),(Computation (s +* (Initialized (stop (while<>0 a,i,I)))),1)
by A12, A10
;
then A14: IC (Computation (s +* (Initialized (stop (while<>0 a,i,I)))),2) =
ICplusConst (Computation (s +* (Initialized (stop (while<>0 a,i,I)))),1),((card I) + 2)
by SCMPDS_2:66
.=
inspos (((card I) + 2) + 1)
by A12, SCMPDS_6:23
.=
inspos ((card I) + (2 + 1))
;
A15:
card (while<>0 a,i,I) = (card I) + 3
by Th12;
then
inspos ((card I) + 3) in dom (stop (while<>0 a,i,I))
by SCMPDS_6:25;
then (Computation (s +* (Initialized (stop (while<>0 a,i,I)))),2) . (inspos ((card I) + 3)) =
(stop (while<>0 a,i,I)) . (inspos ((card I) + 3))
by A5, GRFUNC_1:8
.=
halt SCMPDS
by A15, SCMPDS_6:25
;
then A16:
CurInstr (Computation (s +* (Initialized (stop (while<>0 a,i,I)))),2) = halt SCMPDS
by A14;
then
s +* (Initialized (stop (while<>0 a,i,I))) is halting
by AMI_1:def 20;
then A17:
Computation (s +* (Initialized (stop (while<>0 a,i,I)))),2 = Result (s +* (Initialized (stop (while<>0 a,i,I))))
by A16, AMI_1:def 22;
A18:
IExec (while<>0 a,i,I),s = (Result (s +* (Initialized (stop (while<>0 a,i,I))))) +* (s | NAT )
by SCMPDS_4:def 8;
A19:
now let x be
set ;
:: thesis: ( x in dom (IExec (while<>0 a,i,I),s) implies (IExec (while<>0 a,i,I),s) . b1 = (s +* (Start-At (inspos ((card I) + 3)))) . b1 )A20:
dom (Start-At (inspos ((card I) + 3))) = {(IC SCMPDS )}
by FUNCOP_1:19;
assume A21:
x in dom (IExec (while<>0 a,i,I),s)
;
:: thesis: (IExec (while<>0 a,i,I),s) . b1 = (s +* (Start-At (inspos ((card I) + 3)))) . b1per cases
( x is Int_position or x = IC SCMPDS or x is Instruction-Location of SCMPDS )
by A21, SCMPDS_4:20;
suppose A22:
x is
Int_position
;
:: thesis: (IExec (while<>0 a,i,I),s) . b1 = (s +* (Start-At (inspos ((card I) + 3)))) . b1then
x <> IC SCMPDS
by SCMPDS_2:52;
then A23:
not
x in dom (Start-At (inspos ((card I) + 3)))
by A20, TARSKI:def 1;
hence (IExec (while<>0 a,i,I),s) . x =
(Computation (s +* (Initialized (stop (while<>0 a,i,I)))),2) . x
by A17, A18, FUNCT_4:12
.=
(Computation (s +* (Initialized (stop (while<>0 a,i,I)))),1) . x
by A13, A22, SCMPDS_2:66
.=
(s +* (Initialized (stop (while<>0 a,i,I)))) . x
by A8, A22, SCMPDS_2:67
.=
s . x
by A22, SCMPDS_5:19
.=
(s +* (Start-At (inspos ((card I) + 3)))) . x
by A23, FUNCT_4:12
;
:: thesis: verum end; end; end;
dom (IExec (while<>0 a,i,I),s) =
the carrier of SCMPDS
by AMI_1:79
.=
dom (s +* (Start-At (inspos ((card I) + 3))))
by AMI_1:79
;
hence
IExec (while<>0 a,i,I),s = s +* (Start-At (inspos ((card I) + 3)))
by A19, FUNCT_1:9; :: thesis: verum