let s be State of SCMPDS ; :: thesis: for I being parahalting Program of SCMPDS holds
( not Initialize I c= s or CurInstr (ProgramPart (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))),(Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) = halt SCMPDS or IC (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) = card I )

let I be parahalting Program of SCMPDS ; :: thesis: ( not Initialize I c= s or CurInstr (ProgramPart (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))),(Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) = halt SCMPDS or IC (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) = card I )
set ss = (Initialize s) +* (stop I);
set m = LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I));
I1: s +* (Initialize (stop I)) = (Initialize s) +* (stop I) by SCMPDS_4:5;
I2: ((Initialize s) +* (stop I)) +* (Initialize (stop I)) = (Initialize ((Initialize s) +* (stop I))) +* (stop I) by SCMPDS_4:5;
set s1 = Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)));
set s2 = Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I)));
set Ik = IC (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I))));
A1: ProgramPart ((Initialize s) +* (stop I)) halts_on (Initialize s) +* (stop I) by I1, FUNCT_4:26, SCMPDS_4:63;
reconsider n = IC (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I)))) as Element of NAT ;
A2: Initialize (stop I) c= (Initialize s) +* (stop I) by I1, FUNCT_4:26;
then A3: IC (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I)))) in dom (stop I) by SCMPDS_4:def 9;
XX: ( (Initialize (stop I)) +* ((Initialize s) +* (stop I)) = (Initialize s) +* (stop I) & (Initialize ((Initialize s) +* (stop I))) +* (stop I) = (Initialize s) +* (stop I) ) by A2, I2, FUNCT_4:79;
xx: ( (Initialize (stop I)) +* ((Initialize s) +* (stop I)) = (Initialize s) +* (stop I) & (Initialize ((Initialize s) +* (stop I))) +* (stop I) = (Initialize s) +* (stop I) ) by A2, I2, FUNCT_4:79;
card (stop I) = (card I) + 1 by LL, SCMPDS_4:45;
then n < (card I) + 1 by A3, AFINSQ_1:70;
then A4: n <= card I by INT_1:20;
stop I c= Initialize (stop I) by SCMPDS_4:9;
then A5: stop I c= (Initialize s) +* (stop I) by A2, XBOOLE_1:1;
assume A6: Initialize I c= s ; :: thesis: ( CurInstr (ProgramPart (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))),(Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) = halt SCMPDS or IC (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) = card I )
then A7: IC (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) = IC (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) by Th29, COMPOS_1:24
.= IC (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I)))) by XX ;
A8: I c= s by A6, SCMPDS_4:57;
now
per cases ( n < card I or n = card I ) by A4, XXREAL_0:1;
case n < card I ; :: thesis: halt SCMPDS = CurInstr (ProgramPart (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))),(Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))
then A9: n in dom I by AFINSQ_1:70;
Z: (ProgramPart (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) /. (IC (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) = (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) . (IC (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) by COMPOS_1:38;
V: (ProgramPart (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I))))) /. (IC (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I))))) = (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I)))) . (IC (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I))))) by COMPOS_1:38;
TX: ProgramPart ((Initialize s) +* (stop I)) = ProgramPart (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) by AMI_1:123;
thus halt SCMPDS = CurInstr (ProgramPart ((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 A1, AMI_1:def 46
.= CurInstr (ProgramPart (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I))))),(Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I)))) by xx, TX
.= ((Initialize s) +* (stop I)) . (IC (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I))))) by V, AMI_1:54
.= (stop I) . (IC (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I))))) by A3, A5, GRFUNC_1:8
.= I . (IC (Comput (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)),(LifeSpan (ProgramPart ((Initialize ((Initialize s) +* (stop I))) +* (stop I))),((Initialize ((Initialize s) +* (stop I))) +* (stop I))))) by A9, SCMPDS_4:37
.= s . (IC (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))) by A8, A7, A9, GRFUNC_1:8
.= CurInstr (ProgramPart (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))),(Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) by Z, AMI_1:54 ; :: thesis: verum
end;
end;
end;
hence ( CurInstr (ProgramPart (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I))))),(Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) = halt SCMPDS or IC (Comput (ProgramPart s),s,(LifeSpan (ProgramPart ((Initialize s) +* (stop I))),((Initialize s) +* (stop I)))) = card I ) ; :: thesis: verum