let P be Instruction-Sequence of SCM+FSA; for s being State of SCM+FSA
for I being Program of SCM+FSA
for a being read-write Int-Location st I is_closed_onInit s,P & I is_halting_onInit s,P & s . a > 0 holds
( IC (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = 0 & DataPart (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = DataPart (Comput ((P +* I),(Initialized s),(LifeSpan ((P +* I),(Initialized s))))) )
let s be State of SCM+FSA; for I being Program of SCM+FSA
for a being read-write Int-Location st I is_closed_onInit s,P & I is_halting_onInit s,P & s . a > 0 holds
( IC (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = 0 & DataPart (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = DataPart (Comput ((P +* I),(Initialized s),(LifeSpan ((P +* I),(Initialized s))))) )
let I be Program of SCM+FSA; for a being read-write Int-Location st I is_closed_onInit s,P & I is_halting_onInit s,P & s . a > 0 holds
( IC (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = 0 & DataPart (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = DataPart (Comput ((P +* I),(Initialized s),(LifeSpan ((P +* I),(Initialized s))))) )
let a be read-write Int-Location ; ( I is_closed_onInit s,P & I is_halting_onInit s,P & s . a > 0 implies ( IC (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = 0 & DataPart (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = DataPart (Comput ((P +* I),(Initialized s),(LifeSpan ((P +* I),(Initialized s))))) ) )
set D = Data-Locations ;
set s0 = Initialized s;
set s1 = Initialize (Initialized s);
set P1 = P +* (while>0 (a,I));
set PI = P +* I;
set s2 = Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),1);
set i = a >0_goto 4;
A1:
while>0 (a,I) c= P +* (while>0 (a,I))
by FUNCT_4:25;
defpred S1[ Nat] means ( $1 <= LifeSpan ((P +* I),(Initialize (Initialized s))) implies ( IC (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(1 + $1))) = (IC (Comput ((P +* I),(Initialize (Initialized s)),$1))) + 4 & DataPart (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(1 + $1))) = DataPart (Comput ((P +* I),(Initialize (Initialized s)),$1)) ) );
set loc4 = (card I) + 4;
set s3 = Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1));
A2:
(card I) + 4 in dom (while>0 (a,I))
by SCMFSA_9:33;
assume A4:
I is_closed_onInit s,P
; ( not I is_halting_onInit s,P or not s . a > 0 or ( IC (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = 0 & DataPart (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = DataPart (Comput ((P +* I),(Initialized s),(LifeSpan ((P +* I),(Initialized s))))) ) )
YY: Initialize (Initialized s) =
Initialize (Initialized s)
.=
Initialize (Initialized s)
.=
Initialized s
by MEMSTR_0:44
;
for k being Element of NAT holds IC (Comput ((P +* I),(Initialize (Initialized s)),k)) in dom I
by A4, YY, SCM_HALT:def 4;
then A5:
I is_closed_on Initialized s,P
by SCMFSA7B:def 6;
assume
I is_halting_onInit s,P
; ( not s . a > 0 or ( IC (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = 0 & DataPart (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = DataPart (Comput ((P +* I),(Initialized s),(LifeSpan ((P +* I),(Initialized s))))) ) )
then A6:
P +* I halts_on Initialized s
by SCM_HALT:def 5;
A7:
I is_halting_on Initialized s,P
by A6, YY, SCMFSA7B:def 7;
A8:
now let k be
Element of
NAT ;
( S1[k] implies S1[k + 1] )assume A9:
S1[
k]
;
S1[k + 1]now A10:
k + 0 < k + 1
by XREAL_1:6;
assume
k + 1
<= LifeSpan (
(P +* I),
(Initialize (Initialized s)))
;
( IC (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + k) + 1))) = (IC (Comput ((P +* I),(Initialize (Initialized s)),(k + 1)))) + 4 & DataPart (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + k) + 1))) = DataPart (Comput ((P +* I),(Initialize (Initialized s)),(k + 1))) )then
k < LifeSpan (
(P +* I),
(Initialize (Initialized s)))
by A10, XXREAL_0:2;
hence
(
IC (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + k) + 1))) = (IC (Comput ((P +* I),(Initialize (Initialized s)),(k + 1)))) + 4 &
DataPart (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + k) + 1))) = DataPart (Comput ((P +* I),(Initialize (Initialized s)),(k + 1))) )
by A5, A7, A9, SCMFSA_9:39;
verum end; hence
S1[
k + 1]
;
verum end;
0 in dom (while>0 (a,I))
by SCMFSA_9:10;
then A11: (P +* (while>0 (a,I))) . 0 =
(while>0 (a,I)) . 0
by A1, GRFUNC_1:2
.=
a >0_goto 4
by SCMFSA_9:11
;
IC in dom (Start-At (0,SCM+FSA))
by MEMSTR_0:15;
then A12: IC (Initialize (Initialized s)) =
IC (Start-At (0,SCM+FSA))
by FUNCT_4:13
.=
0
by FUNCOP_1:72
;
A13: Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(0 + 1)) =
Following ((P +* (while>0 (a,I))),(Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),0)))
by EXTPRO_1:3
.=
Following ((P +* (while>0 (a,I))),(Initialize (Initialized s)))
by EXTPRO_1:2
.=
Exec ((a >0_goto 4),(Initialize (Initialized s)))
by A12, A11, PBOOLE:143
;
then A14:
for f being FinSeq-Location holds (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),1)) . f = (Initialize (Initialized s)) . f
by SCMFSA_2:71;
for c being Int-Location holds (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),1)) . c = (Initialize (Initialized s)) . c
by A13, SCMFSA_2:71;
then A15: DataPart (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),1)) =
DataPart (Initialize (Initialized s))
by A14, SCMFSA6A:7
.=
DataPart (Initialize (Initialized s))
;
set s4 = Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1) + 1));
set s2 = Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))));
not a in dom (Start-At (0,SCM+FSA))
by SCMFSA_2:102;
then A16:
(Initialize (Initialized s)) . a = (Initialized s) . a
by FUNCT_4:11;
assume
s . a > 0
; ( IC (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = 0 & DataPart (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = DataPart (Comput ((P +* I),(Initialized s),(LifeSpan ((P +* I),(Initialized s))))) )
then A17:
(Initialized s) . a > 0
by SCMFSA6C:3;
A18:
S1[ 0 ]
proof
assume
0 <= LifeSpan (
(P +* I),
(Initialize (Initialized s)))
;
( IC (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(1 + 0))) = (IC (Comput ((P +* I),(Initialize (Initialized s)),0))) + 4 & DataPart (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(1 + 0))) = DataPart (Comput ((P +* I),(Initialize (Initialized s)),0)) )
B19:
IC in dom (Start-At (0,SCM+FSA))
by MEMSTR_0:15;
IC (Comput ((P +* I),(Initialize (Initialized s)),0)) =
IC (Initialize (Initialized s))
by EXTPRO_1:2
.=
IC (Start-At (0,SCM+FSA))
by B19, FUNCT_4:13
.=
0
by FUNCOP_1:72
;
hence
(
IC (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(1 + 0))) = (IC (Comput ((P +* I),(Initialize (Initialized s)),0))) + 4 &
DataPart (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(1 + 0))) = DataPart (Comput ((P +* I),(Initialize (Initialized s)),0)) )
by A17, A13, A16, A15, EXTPRO_1:2, SCMFSA_2:71;
verum
end;
for k being Element of NAT holds S1[k]
from NAT_1:sch 1(A18, A8);
then A20:
S1[ LifeSpan ((P +* I),(Initialize (Initialized s)))]
;
A21: Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1)) =
Following ((P +* (while>0 (a,I))),(Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))))))
by EXTPRO_1:3
.=
Exec ((goto ((card I) + 4)),(Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))))))
by A5, A7, A20, SCMFSA_9:40
;
then A22:
for f being FinSeq-Location holds (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1))) . f = (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))))) . f
by SCMFSA_2:69;
A23: (P +* (while>0 (a,I))) . ((card I) + 4) =
(while>0 (a,I)) . ((card I) + 4)
by A2, A1, GRFUNC_1:2
.=
goto 0
by SCMFSA_9:41
;
A24:
(P +* (while>0 (a,I))) /. (IC (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1)))) = (P +* (while>0 (a,I))) . (IC (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1))))
by PBOOLE:143;
A25: Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1) + 1)) =
Following ((P +* (while>0 (a,I))),(Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1))))
by EXTPRO_1:3
.=
Exec ((goto 0),(Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1))))
by A21, A23, A24, SCMFSA_2:69
;
then A26:
for f being FinSeq-Location holds (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1) + 1))) . f = (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1))) . f
by SCMFSA_2:69;
for c being Int-Location holds (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1))) . c = (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))))) . c
by A21, SCMFSA_2:69;
then A27:
DataPart (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1))) = DataPart (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(1 + (LifeSpan ((P +* I),(Initialize (Initialized s)))))))
by A22, SCMFSA6A:7;
A28:
Initialized s = Initialize (Initialized s)
by MEMSTR_0:44;
Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3)) = Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1) + 1))
by A28;
hence
IC (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = 0
by A25, SCMFSA_2:69; DataPart (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = DataPart (Comput ((P +* I),(Initialized s),(LifeSpan ((P +* I),(Initialized s)))))
A32:
Initialize (Initialized s) = Initialized s
by MEMSTR_0:44;
for c being Int-Location holds (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),(((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1) + 1))) . c = (Comput ((P +* (while>0 (a,I))),(Initialize (Initialized s)),((1 + (LifeSpan ((P +* I),(Initialize (Initialized s))))) + 1))) . c
by A25, SCMFSA_2:69;
hence
DataPart (Comput ((P +* (while>0 (a,I))),(Initialized s),((LifeSpan ((P +* I),(Initialized s))) + 3))) = DataPart (Comput ((P +* I),(Initialized s),(LifeSpan ((P +* I),(Initialized s)))))
by A32, A20, A27, A26, SCMFSA6A:7; verum