let P be Instruction-Sequence of SCM+FSA; for s being State of SCM+FSA
for I, J being really-closed MacroInstruction of SCM+FSA
for a being read-write Int-Location st s . a <= 0 & J is_halting_on s,P holds
if>0 (a,I,J) is_halting_on s,P
let s be State of SCM+FSA; for I, J being really-closed MacroInstruction of SCM+FSA
for a being read-write Int-Location st s . a <= 0 & J is_halting_on s,P holds
if>0 (a,I,J) is_halting_on s,P
let I, J be really-closed MacroInstruction of SCM+FSA ; for a being read-write Int-Location st s . a <= 0 & J is_halting_on s,P holds
if>0 (a,I,J) is_halting_on s,P
let a be read-write Int-Location; ( s . a <= 0 & J is_halting_on s,P implies if>0 (a,I,J) is_halting_on s,P )
set I1 = I ";" (Stop SCM+FSA);
reconsider JI2 = ((J ";" (Goto ((card I) + 1))) ";" I) ";" (Stop SCM+FSA) as really-closed Program of SCM+FSA by Lm3;
set s2 = Initialize s;
set P2 = P +* JI2;
A1:
JI2 c= P +* JI2
by FUNCT_4:25;
set s3 = Initialize s;
set P3 = P +* (if>0 (a,I,J));
set s4 = Comput ((P +* (if>0 (a,I,J))),(Initialize s),1);
set s5 = Comput ((P +* (if>0 (a,I,J))),(Initialize s),2);
set i = a >0_goto ((card J) + 3);
IC in dom (Start-At (0,SCM+FSA))
by MEMSTR_0:15;
then A2: IC (Initialize s) =
IC (Start-At (0,SCM+FSA))
by FUNCT_4:13
.=
0
by FUNCOP_1:72
;
A3:
if>0 (a,I,J) c= P +* (if>0 (a,I,J))
by FUNCT_4:25;
if>0 (a,I,J) =
(((a >0_goto ((card J) + 3)) ";" J) ";" (Goto ((card I) + 1))) ";" (I ";" (Stop SCM+FSA))
by SCMFSA6A:25
.=
((a >0_goto ((card J) + 3)) ";" J) ";" ((Goto ((card I) + 1)) ";" (I ";" (Stop SCM+FSA)))
by SCMFSA6A:25
.=
(a >0_goto ((card J) + 3)) ";" (J ";" ((Goto ((card I) + 1)) ";" (I ";" (Stop SCM+FSA))))
by SCMFSA6A:29
.=
(a >0_goto ((card J) + 3)) ";" ((J ";" (Goto ((card I) + 1))) ";" (I ";" (Stop SCM+FSA)))
by SCMFSA6A:25
.=
(Macro (a >0_goto ((card J) + 3))) ";" JI2
by SCMFSA6A:25
;
then A4:
Reloc (JI2,(card (Macro (a >0_goto ((card J) + 3))))) c= if>0 (a,I,J)
by SCMFSA6A:38;
card (Macro (a >0_goto ((card J) + 3))) = 2
by COMPOS_1:56;
then A5:
Reloc (JI2,2) c= P +* (if>0 (a,I,J))
by A3, A4, XBOOLE_1:1;
A6:
not a in dom (Start-At (0,SCM+FSA))
by SCMFSA_2:102;
A7:
0 in dom (if>0 (a,I,J))
by AFINSQ_1:65;
A8: (P +* (if>0 (a,I,J))) . 0 =
(if>0 (a,I,J)) . 0
by A7, FUNCT_4:13
.=
a >0_goto ((card J) + 3)
by Lm2
;
A9:
1 in dom (if>0 (a,I,J))
by Lm1;
A10: Comput ((P +* (if>0 (a,I,J))),(Initialize s),(0 + 1)) =
Following ((P +* (if>0 (a,I,J))),(Comput ((P +* (if>0 (a,I,J))),(Initialize s),0)))
by EXTPRO_1:3
.=
Following ((P +* (if>0 (a,I,J))),(Initialize s))
.=
Exec ((a >0_goto ((card J) + 3)),(Initialize s))
by A2, A8, PBOOLE:143
;
assume
s . a <= 0
; ( not J is_halting_on s,P or if>0 (a,I,J) is_halting_on s,P )
then
(Initialize s) . a <= 0
by A6, FUNCT_4:11;
then A11:
IC (Comput ((P +* (if>0 (a,I,J))),(Initialize s),1)) = 0 + 1
by A2, A10, SCMFSA_2:71;
A12: (P +* (if>0 (a,I,J))) . 1 =
(if>0 (a,I,J)) . 1
by A9, FUNCT_4:13
.=
goto 2
by Lm2
;
A13: Comput ((P +* (if>0 (a,I,J))),(Initialize s),(1 + 1)) =
Following ((P +* (if>0 (a,I,J))),(Comput ((P +* (if>0 (a,I,J))),(Initialize s),1)))
by EXTPRO_1:3
.=
Exec ((goto 2),(Comput ((P +* (if>0 (a,I,J))),(Initialize s),1)))
by A11, A12, PBOOLE:143
;
A14:
now for f being FinSeq-Location holds (Initialize s) . f = (Comput ((P +* (if>0 (a,I,J))),(Initialize s),2)) . flet f be
FinSeq-Location ;
(Initialize s) . f = (Comput ((P +* (if>0 (a,I,J))),(Initialize s),2)) . fthus (Initialize s) . f =
(Comput ((P +* (if>0 (a,I,J))),(Initialize s),1)) . f
by A10, SCMFSA_2:71
.=
(Comput ((P +* (if>0 (a,I,J))),(Initialize s),2)) . f
by A13, SCMFSA_2:69
;
verum end;
now for a being Int-Location holds (Initialize s) . a = (Comput ((P +* (if>0 (a,I,J))),(Initialize s),2)) . alet a be
Int-Location;
(Initialize s) . a = (Comput ((P +* (if>0 (a,I,J))),(Initialize s),2)) . athus (Initialize s) . a =
(Comput ((P +* (if>0 (a,I,J))),(Initialize s),1)) . a
by A10, SCMFSA_2:71
.=
(Comput ((P +* (if>0 (a,I,J))),(Initialize s),2)) . a
by A13, SCMFSA_2:69
;
verum end;
then A15:
DataPart (Initialize s) = DataPart (Comput ((P +* (if>0 (a,I,J))),(Initialize s),2))
by A14, SCMFSA_M:2;
assume A16:
J is_halting_on s,P
; if>0 (a,I,J) is_halting_on s,P
A17:
P +* JI2 halts_on Initialize s
by A16, SCMFSA8A:38;
A18:
IC (Comput ((P +* (if>0 (a,I,J))),(Initialize s),2)) = 2
by A13, SCMFSA_2:69;
CurInstr ((P +* (if>0 (a,I,J))),(Comput ((P +* (if>0 (a,I,J))),(Initialize s),((LifeSpan ((P +* JI2),(Initialize s))) + 2)))) =
CurInstr ((P +* (if>0 (a,I,J))),(Comput ((P +* (if>0 (a,I,J))),(Comput ((P +* (if>0 (a,I,J))),(Initialize s),2)),(LifeSpan ((P +* JI2),(Initialize s))))))
by EXTPRO_1:4
.=
IncAddr ((CurInstr ((P +* JI2),(Comput ((P +* JI2),(Initialize s),(LifeSpan ((P +* JI2),(Initialize s))))))),2)
by A5, A18, A15, Th2, A1
.=
IncAddr ((halt SCM+FSA),2)
by A17, EXTPRO_1:def 15
.=
halt SCM+FSA
by COMPOS_0:4
;
then
P +* (if>0 (a,I,J)) halts_on Initialize s
by EXTPRO_1:29;
hence
if>0 (a,I,J) is_halting_on s,P
by SCMFSA7B:def 7; verum