let s be State of SCMPDS ; :: thesis: for I being halt-free Program of SCMPDS
for J being shiftable Program of SCMPDS st I is_closed_on s & I is_halting_on s & J is_closed_on IExec I,s & J is_halting_on IExec I,s holds
IExec (I ';' J),s = (IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)),SCMPDS )

let I be halt-free Program of SCMPDS ; :: thesis: for J being shiftable Program of SCMPDS st I is_closed_on s & I is_halting_on s & J is_closed_on IExec I,s & J is_halting_on IExec I,s holds
IExec (I ';' J),s = (IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)),SCMPDS )

let J be shiftable Program of SCMPDS ; :: thesis: ( I is_closed_on s & I is_halting_on s & J is_closed_on IExec I,s & J is_halting_on IExec I,s implies IExec (I ';' J),s = (IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)),SCMPDS ) )
set ps = s | NAT ;
set IJ = I ';' J;
set s1 = (Initialize s) +* (stop I);
set m1 = LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I));
set s2 = (Initialize s) +* (stop (I ';' J));
set s3 = (Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J);
set m3 = LifeSpan (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J));
set sE = IExec I,s;
I3: (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (Initialize (stop J)) = (Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J) by SCMPDS_4:5;
assume that
A1: I is_closed_on s and
A2: I is_halting_on s and
A3: J is_closed_on IExec I,s and
A4: J is_halting_on IExec I,s ; :: thesis: IExec (I ';' J),s = (IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)),SCMPDS )
A5: DataPart (Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) = DataPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)) by A1, A2, A3, A4, Lm1;
J is_closed_on Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))) by A2, A3, A4, Th42;
then A6: J is_closed_on (Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J) by SCMPDS_6:38;
A7: Initialize (stop J) c= (Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J) by I3, FUNCT_4:26;
A8: Shift (stop J),(card I) c= Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))) by A1, A2, A3, A4, Lm1;
A9: IC (Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) = card I by A1, A2, A3, A4, Lm1;
then A10: IC (Comput (ProgramPart (Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))),(Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))),(LifeSpan (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)))) = (IC (Comput (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)),(LifeSpan (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))))) + (card I) by A7, A5, A8, A6, SCMPDS_6:45;
A11: DataPart (Comput (ProgramPart (Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))),(Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))),(LifeSpan (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)))) = DataPart (Comput (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)),(LifeSpan (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)))) by A7, A9, A5, A8, A6, SCMPDS_6:45;
I6: (Initialize (IExec I,s)) +* (stop J) = (IExec I,s) +* (Initialize (stop J)) by SCMPDS_4:5;
A12: Initialize (stop J) c= (Initialize (IExec I,s)) +* (stop J) by I6, FUNCT_4:26;
set R1 = (Initialize (IExec I,s)) +* (stop J);
set R2 = (Initialize (Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (stop J);
I4: (IExec I,s) +* (Initialize (stop J)) = (Initialize (IExec I,s)) +* (stop J) by SCMPDS_4:5;
I5: (Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))) +* (Initialize (stop J)) = (Initialize (Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (stop J) by SCMPDS_4:5;
A13: dom (s | NAT ) = (dom s) /\ NAT by RELAT_1:90
.= (({(IC SCMPDS )} \/ SCM-Data-Loc ) \/ NAT ) /\ NAT by SCMPDS_4:19
.= NAT by XBOOLE_1:21 ;
A14: Initialize (stop J) c= (Initialize (Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (stop J) by I5, FUNCT_4:26;
A15: Initialize (stop J) c= (Initialize (IExec I,s)) +* (stop J) by I4, FUNCT_4:26;
A16: (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (Initialize (stop J)),((Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (s | NAT )) +* (Initialize (stop J)) equal_outside dom (s | NAT ) by FUNCT_7:31, FUNCT_7:106;
then A17: ((Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (s | NAT )) +* (Initialize (stop J)),(Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (Initialize (stop J)) equal_outside dom (s | NAT ) by FUNCT_7:28;
A18: ProgramPart ((Initialize s) +* (stop I)) halts_on (Initialize s) +* (stop I) by A2, SCMPDS_6:def 3;
then A19: (Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J) = (Initialize (Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (stop J) by AMI_1:122;
A20: DataPart (IExec I,s) = DataPart ((Initialize (IExec I,s)) +* (stop J)) by SCMPDS_6:9;
then A21: J is_closed_on (Initialize (IExec I,s)) +* (stop J) by A3, A4, SCMPDS_6:37;
A22: J is_halting_on (Initialize (IExec I,s)) +* (stop J) by A3, A4, A20, SCMPDS_6:37;
Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)) = Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))) by A18, AMI_1:122;
then ((Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))) +* (s | NAT )) +* (Initialize (stop J)),(Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))) +* (Initialize (stop J)) equal_outside NAT by A13, A16, FUNCT_7:28;
then A23: IC (Result (ProgramPart ((Initialize (Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (stop J))),((Initialize (Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (stop J))) = IC (Result (ProgramPart ((Initialize (IExec I,s)) +* (stop J))),((Initialize (IExec I,s)) +* (stop J))) by A21, A22, A15, A14, Th28, I4, I5, COMPOS_1:24;
A24: Initialize (stop J) c= (Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J) by I3, FUNCT_4:26;
A25: (IExec I,s) | NAT = s | NAT by PBOOLE:157;
I ';' J is_halting_on s by A1, A2, A3, A4, Th43;
then A26: ProgramPart ((Initialize s) +* (stop (I ';' J))) halts_on (Initialize s) +* (stop (I ';' J)) by SCMPDS_6:def 3;
J is_halting_on Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))) by A2, A3, A4, Th42;
then A27: ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)) halts_on (Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J) by SCMPDS_6:def 3;
IExec I,s = (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (s | NAT ) by A18, AMI_1:122;
then Result (ProgramPart ((Initialize (IExec I,s)) +* (stop J))),((Initialize (IExec I,s)) +* (stop J)), Result (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)) equal_outside NAT by A21, A22, A13, A17, A12, A24, Th28, I3, I4;
then (Result (ProgramPart ((Initialize (IExec I,s)) +* (stop J))),((Initialize (IExec I,s)) +* (stop J))) +* (s | NAT ) = (Result (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))) +* (s | NAT ) by A13, FUNCT_7:108;
then A28: IExec J,(IExec I,s) = (Comput (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)),(LifeSpan (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)))) +* (s | NAT ) by A27, A25, AMI_1:122;
T: ProgramPart ((Initialize s) +* (stop (I ';' J))) = ProgramPart (Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) by AMI_1:123;
X: Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)) = Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))) by A18, AMI_1:122;
A29: IC (IExec (I ';' J),s) = IC (Result (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J)))) by SCMPDS_5:22
.= IC (Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),(LifeSpan (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))))) by A26, AMI_1:122
.= IC (Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),((LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))) + (LifeSpan (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))))) by A1, A2, A3, A4, A19, Lm1
.= (IC (Comput (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)),(LifeSpan (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))))) + (card I) by A10, T, AMI_1:51
.= (IC (Result (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)))) + (card I) by A27, AMI_1:122
.= (IC (Result (ProgramPart ((Initialize (Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (stop J))),((Initialize (Result (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) +* (stop J)))) + (card I) by X
.= (IC (IExec J,(IExec I,s))) + (card I) by A23, SCMPDS_5:22 ;
IExec (I ';' J),s = (Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),(LifeSpan (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))))) +* (s | NAT ) by A26, AMI_1:122
.= (Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),((LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))) + (LifeSpan (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))))) +* (s | NAT ) by A1, A2, A3, A4, A19, Lm1 ;
then A30: DataPart (IExec (I ';' J),s) = DataPart (Comput (ProgramPart ((Initialize s) +* (stop (I ';' J)))),((Initialize s) +* (stop (I ';' J))),((LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))) + (LifeSpan (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))))) by A13, AMI_2:29, FUNCT_4:76, SCMPDS_2:100
.= DataPart (Comput (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)),(LifeSpan (ProgramPart ((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J))),((Initialize (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) +* (stop J)))) by A11, T, AMI_1:51
.= DataPart (IExec J,(IExec I,s)) by A13, A28, AMI_2:29, FUNCT_4:76, SCMPDS_2:100 ;
hereby :: thesis: verum
reconsider l = (IC (IExec J,(IExec I,s))) + (card I) as Element of NAT ;
A31: dom (Start-At l,SCMPDS ) = {(IC SCMPDS )} by FUNCOP_1:19;
A32: 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)),SCMPDS )) . b1 )
assume A33: 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)),SCMPDS )) . b1
per cases ( x is Int_position or x = IC SCMPDS or x is Element of NAT ) by A33, SCMPDS_4:20;
suppose A34: x is Int_position ; :: thesis: (IExec (I ';' J),s) . b1 = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)),SCMPDS )) . b1
then x <> IC SCMPDS by SCMPDS_2:52;
then A35: not x in dom (Start-At l,SCMPDS ) by A31, TARSKI:def 1;
(IExec (I ';' J),s) . x = (IExec J,(IExec I,s)) . x by A30, A34, SCMPDS_4:23;
hence (IExec (I ';' J),s) . x = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)),SCMPDS )) . x by A35, FUNCT_4:12; :: thesis: verum
end;
suppose A36: x = IC SCMPDS ; :: thesis: (IExec (I ';' J),s) . b1 = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)),SCMPDS )) . b1
then x in {(IC SCMPDS )} by TARSKI:def 1;
then A37: x in dom (Start-At l,SCMPDS ) by FUNCOP_1:19;
thus (IExec (I ';' J),s) . x = (Start-At l,SCMPDS ) . (IC SCMPDS ) by A29, A36, FUNCOP_1:87
.= ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)),SCMPDS )) . x by A36, A37, FUNCT_4:14 ; :: thesis: verum
end;
suppose A38: x is Element of NAT ; :: thesis: (IExec (I ';' J),s) . b1 = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)),SCMPDS )) . b1
then x <> IC SCMPDS by COMPOS_1:3;
then A39: not x in dom (Start-At l,SCMPDS ) by A31, TARSKI:def 1;
(IExec (I ';' J),s) | NAT = s | NAT by PBOOLE:157
.= (IExec J,(IExec I,s)) | NAT by A25, PBOOLE:157 ;
then (IExec (I ';' J),s) . x = (IExec J,(IExec I,s)) . x by A38, SCMPDS_4:21;
hence (IExec (I ';' J),s) . x = ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)),SCMPDS )) . x by A39, FUNCT_4:12; :: thesis: verum
end;
end;
end;
dom (IExec (I ';' J),s) = the carrier of SCMPDS by PARTFUN1:def 4
.= dom ((IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)),SCMPDS )) by PARTFUN1:def 4 ;
hence IExec (I ';' J),s = (IExec J,(IExec I,s)) +* (Start-At ((IC (IExec J,(IExec I,s))) + (card I)),SCMPDS ) by A32, FUNCT_1:9; :: thesis: verum
end;