let s be State of ; :: thesis: for I being parahalting keeping_0 Program of
for J being parahalting Program of holds IExec (I ';' J),s = (IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))

set D = Int-Locations \/ FinSeq-Locations ;
set A = NAT ;
set SA0 = Start-At (insloc 0 );
let I be parahalting keeping_0 Program of ; :: thesis: for J being parahalting Program of holds IExec (I ';' J),s = (IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))
let J be parahalting Program of ; :: thesis: IExec (I ';' J),s = (IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))
set ps = s | NAT ;
set s1 = s +* (Initialized I);
set s2 = s +* (Initialized (I ';' J));
set s3 = (Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J);
set m1 = LifeSpan (s +* (Initialized I));
set m3 = LifeSpan ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J));
A1: Initialized (I ';' J) c= s +* (Initialized (I ';' J)) by FUNCT_4:26;
I +* (Start-At (insloc 0 )) c= (s +* (Initialized (I ';' J))) +* (I +* (Start-At (insloc 0 ))) by FUNCT_4:26;
then I +* (Start-At (insloc 0 )) c= ((s +* (Initialized (I ';' J))) +* I) +* (Start-At (insloc 0 )) by FUNCT_4:15;
then A2: I +* (Start-At (insloc 0 )) c= ((s +* (Initialized (I ';' J))) +* (Start-At (insloc 0 ))) +* I by Th14;
A3: (s +* (Initialized I)) +* (I ';' J) = s +* ((Initialized I) +* (I ';' J)) by FUNCT_4:15
.= s +* (Initialized (I ';' J)) by SCMFSA6A:58 ;
A4: ProgramPart (s +* (Initialized I)) halts_on s +* (Initialized I) by Th19, FUNCT_4:26;
A5: J +* (Start-At (insloc 0 )) c= (Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J) by Th8, FUNCT_4:26;
A6: (Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J),((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (s | NAT )) +* (Initialized J) equal_outside dom (s | NAT ) by FUNCT_7:31, FUNCT_7:106;
then A7: ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (s | NAT )) +* (Initialized J),(Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J) equal_outside dom (s | NAT ) by FUNCT_7:28;
A8: dom (s | NAT ) = (dom s) /\ NAT by RELAT_1:90
.= (((Int-Locations \/ FinSeq-Locations ) \/ {(IC SCM+FSA )}) \/ NAT ) /\ NAT by AMI_1:79, SCMFSA_2:8
.= NAT by XBOOLE_1:21 ;
then A9: dom (s | NAT ) misses Int-Locations \/ FinSeq-Locations by SCMFSA_2:13, SCMFSA_2:14, XBOOLE_1:70;
Initialized I c= (s +* (Initialized (I ';' J))) +* I by FUNCT_4:26, SCMFSA6A:52;
then A10: I +* (Start-At (insloc 0 )) c= (s +* (Initialized (I ';' J))) +* I by Th8;
A11: I +* (Start-At (insloc 0 )) c= s +* (Initialized I) by Th8, FUNCT_4:26;
( s +* (Initialized I),s +* (Initialized (I ';' J)) equal_outside NAT & s +* (Initialized (I ';' J)),(s +* (Initialized (I ';' J))) +* I equal_outside NAT ) by AMI_1:120, SCMFSA6A:53;
then s +* (Initialized I),(s +* (Initialized (I ';' J))) +* I equal_outside NAT by FUNCT_7:29;
then A12: LifeSpan ((s +* (Initialized (I ';' J))) +* I) = LifeSpan (s +* (Initialized I)) by A11, A10, Th29;
then A13: ProgramPart (Relocated J,(card I)) c= Computation (s +* (Initialized (I ';' J))),((LifeSpan (s +* (Initialized I))) + 1) by A1, Lm4;
A14: Initialized I c= s +* (Initialized I) by FUNCT_4:26;
then B14: ProgramPart (s +* (Initialized I)) halts_on s +* (Initialized I) by Th19;
then A15: (Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J) = (Result (s +* (Initialized I))) +* (Initialized J) by Th19, AMI_1:122;
( Start-At (insloc 0 ) c= Initialized (I ';' J) & Initialized (I ';' J) c= s +* (Initialized (I ';' J)) ) by FUNCT_4:26;
then Start-At (insloc 0 ) c= s +* (Initialized (I ';' J)) by XBOOLE_1:1;
then I +* (Start-At (insloc 0 )) c= (s +* (Initialized (I ';' J))) +* I by A2, FUNCT_4:79;
then ProgramPart ((s +* (Initialized (I ';' J))) +* I) halts_on (s +* (Initialized (I ';' J))) +* I by Th18;
then DataPart (Computation ((s +* (Initialized (I ';' J))) +* I),(LifeSpan (s +* (Initialized I)))) = DataPart (Computation (((s +* (Initialized (I ';' J))) +* I) +* (I ';' J)),(LifeSpan (s +* (Initialized I)))) by A10, A12, Th36, SCMFSA6A:39
.= DataPart (Computation ((s +* (Initialized (I ';' J))) +* (I +* (I ';' J))),(LifeSpan (s +* (Initialized I)))) by FUNCT_4:15
.= DataPart (Computation ((s +* (Initialized (I ';' J))) +* (I ';' J)),(LifeSpan (s +* (Initialized I)))) by SCMFSA6A:57
.= DataPart (Computation (s +* ((Initialized (I ';' J)) +* (I ';' J))),(LifeSpan (s +* (Initialized I)))) by FUNCT_4:15
.= DataPart (Computation (s +* (Initialized (I ';' J))),(LifeSpan (s +* (Initialized I)))) by LATTICE2:8, SCMFSA6A:26
.= DataPart (Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) by A4, A11, A3, Th36, SCMFSA6A:39 ;
then A16: DataPart ((Computation ((s +* (Initialized (I ';' J))) +* I),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)) = (DataPart (Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I))))) +* (DataPart (Initialized J)) by FUNCT_4:75
.= DataPart ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)) by FUNCT_4:75 ;
A17: ( IC (Computation (s +* (Initialized (I ';' J))),((LifeSpan (s +* (Initialized I))) + 1)) = insloc (card I) & DataPart (Computation (s +* (Initialized (I ';' J))),((LifeSpan (s +* (Initialized I))) + 1)) = DataPart ((Computation ((s +* (Initialized (I ';' J))) +* I),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)) ) by A1, A12, Lm4;
then A18: DataPart (Computation (Computation (s +* (Initialized (I ';' J))),((LifeSpan (s +* (Initialized I))) + 1)),(LifeSpan ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)))) = DataPart (Computation ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)),(LifeSpan ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)))) by A13, A5, A16, Th27;
A19: IC (Computation (Computation (s +* (Initialized (I ';' J))),((LifeSpan (s +* (Initialized I))) + 1)),(LifeSpan ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)))) = (IC (Computation ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)),(LifeSpan ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J))))) + (card I) by A17, A13, A5, A16, Th27;
A20: ( J +* (Start-At (insloc 0 )) c= (Result (s +* (Initialized I))) +* (Initialized J) & J +* (Start-At (insloc 0 )) c= (IExec I,s) +* (Initialized J) ) by Th8, FUNCT_4:26;
A21: ( J +* (Start-At (insloc 0 )) c= (IExec I,s) +* (Initialized J) & J +* (Start-At (insloc 0 )) c= (Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J) ) by Th8, FUNCT_4:26;
A22: Initialized J c= (Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J) by FUNCT_4:26;
then B22: ProgramPart ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)) halts_on (Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J) by Th19;
Result (s +* (Initialized I)) = Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I))) by A14, Th19, AMI_1:122, B14;
then A23: IC (Result ((Result (s +* (Initialized I))) +* (Initialized J))) = IC (Result ((IExec I,s) +* (Initialized J))) by A8, A6, A20, Th29, AMI_1:121;
A24: (IExec I,s) | NAT = s | NAT by CARD_3:99;
IExec I,s = (Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (s | NAT ) by A14, Th19, AMI_1:122, B14;
then Result ((IExec I,s) +* (Initialized J)), Result ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)) equal_outside NAT by A8, A7, A21, Th29;
then (Result ((IExec I,s) +* (Initialized J))) +* (s | NAT ) = (Result ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J))) +* (s | NAT ) by A8, FUNCT_7:108;
then A25: IExec J,(IExec I,s) = (Computation ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)),(LifeSpan ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)))) +* (s | NAT ) by A22, A24, Th19, B22, AMI_1:122;
B1: ProgramPart (s +* (Initialized (I ';' J))) halts_on s +* (Initialized (I ';' J)) by A1, Th19;
then IExec (I ';' J),s = (Computation (s +* (Initialized (I ';' J))),(LifeSpan (s +* (Initialized (I ';' J))))) +* (s | NAT ) by A1, Th19, AMI_1:122
.= (Computation (s +* (Initialized (I ';' J))),(((LifeSpan (s +* (Initialized I))) + 1) + (LifeSpan ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J))))) +* (s | NAT ) by A15, Th43 ;
then A26: DataPart (IExec (I ';' J),s) = DataPart (Computation (s +* (Initialized (I ';' J))),(((LifeSpan (s +* (Initialized I))) + 1) + (LifeSpan ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J))))) by A9, FUNCT_4:76, SCMFSA_2:127
.= DataPart (Computation ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)),(LifeSpan ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)))) by A18, AMI_1:51
.= DataPart (IExec J,(IExec I,s)) by A25, A9, FUNCT_4:76, SCMFSA_2:127 ;
A27: IC (IExec (I ';' J),s) = IC (Result (s +* (Initialized (I ';' J)))) by Th30
.= IC (Computation (s +* (Initialized (I ';' J))),(LifeSpan (s +* (Initialized (I ';' J))))) by A1, Th19, AMI_1:122, B1
.= IC (Computation (s +* (Initialized (I ';' J))),(((LifeSpan (s +* (Initialized I))) + 1) + (LifeSpan ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J))))) by A15, Th43
.= (IC (Computation ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)),(LifeSpan ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J))))) + (card I) by A19, AMI_1:51
.= (IC (Result ((Computation (s +* (Initialized I)),(LifeSpan (s +* (Initialized I)))) +* (Initialized J)))) + (card I) by A22, Th19, AMI_1:122, B22
.= (IC (Result ((Result (s +* (Initialized I))) +* (Initialized J)))) + (card I) by A14, Th19, AMI_1:122, B14
.= (IC (IExec J,(IExec I,s))) + (card I) by A23, Th30 ;
hereby :: thesis: verum
reconsider l = (IC (IExec J,(IExec I,s))) + (card I) as Instruction-Location of SCM+FSA ;
A28: dom (Start-At l) = {(IC SCM+FSA )} by FUNCOP_1:19;
A29: now
let x be set ; :: thesis: ( x in dom (IExec (I ';' J),s) implies (IExec (I ';' J),s) . b1 = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))) . b1 )
assume A30: x in dom (IExec (I ';' J),s) ; :: thesis: (IExec (I ';' J),s) . b1 = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))) . b1
per cases ( x is Int-Location or x is FinSeq-Location or x = IC SCM+FSA or x is Instruction-Location of SCM+FSA ) by A30, SCMFSA6A:35;
suppose A31: x is Int-Location ; :: thesis: (IExec (I ';' J),s) . b1 = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))) . b1
then x <> IC SCM+FSA by SCMFSA_2:81;
then A32: not x in dom (Start-At l) by A28, TARSKI:def 1;
(IExec (I ';' J),s) . x = (IExec J,(IExec I,s)) . x by A26, A31, SCMFSA6A:38;
hence (IExec (I ';' J),s) . x = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))) . x by A32, FUNCT_4:12; :: thesis: verum
end;
suppose A33: x is FinSeq-Location ; :: thesis: (IExec (I ';' J),s) . b1 = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))) . b1
then x <> IC SCM+FSA by SCMFSA_2:82;
then A34: not x in dom (Start-At l) by A28, TARSKI:def 1;
(IExec (I ';' J),s) . x = (IExec J,(IExec I,s)) . x by A26, A33, SCMFSA6A:38;
hence (IExec (I ';' J),s) . x = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))) . x by A34, FUNCT_4:12; :: thesis: verum
end;
suppose A35: x = IC SCM+FSA ; :: thesis: (IExec (I ';' J),s) . b1 = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))) . b1
then x in {(IC SCM+FSA )} by TARSKI:def 1;
then A36: x in dom (Start-At l) by FUNCOP_1:19;
thus (IExec (I ';' J),s) . x = (Start-At l) . (IC SCM+FSA ) by A27, A35, FUNCOP_1:87
.= ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))) . x by A35, A36, FUNCT_4:14 ; :: thesis: verum
end;
suppose A37: x is Instruction-Location of SCM+FSA ; :: thesis: (IExec (I ';' J),s) . b1 = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))) . b1
then x <> IC SCM+FSA by AMI_1:48;
then A38: not x in dom (Start-At l) by A28, TARSKI:def 1;
(IExec (I ';' J),s) | NAT = s | NAT by CARD_3:99
.= (IExec J,(IExec I,s)) | NAT by A24, CARD_3:99 ;
then (IExec (I ';' J),s) . x = (IExec J,(IExec I,s)) . x by A37, SCMFSA6A:36;
hence (IExec (I ';' J),s) . x = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))) . x by A38, FUNCT_4:12; :: thesis: verum
end;
end;
end;
dom (IExec (I ';' J),s) = the carrier of SCM+FSA by AMI_1:79
.= dom ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)))) by AMI_1:79 ;
hence IExec (I ';' J),s = (IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I))) by A29, FUNCT_1:9; :: thesis: verum
end;