let s be State of SCM+FSA; for P being the Instructions of SCM+FSA -valued ManySortedSet of NAT
for I, J being Program of SCM+FSA st I is_closed_on s,P & I is_halting_on s,P holds
( ( for k being Element of NAT st k <= LifeSpan ((P +* I),(Initialize s)) holds
( IC (Comput ((P +* (Directed I)),(Initialize s),k)) = IC (Comput ((P +* (I ';' J)),(Initialize s),k)) & CurInstr ((P +* (Directed I)),(Comput ((P +* (Directed I)),(Initialize s),k))) = CurInstr ((P +* (I ';' J)),(Comput ((P +* (I ';' J)),(Initialize s),k))) ) ) & DataPart (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = DataPart (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) & IC (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = IC (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) )
let P be the Instructions of SCM+FSA -valued ManySortedSet of NAT ; for I, J being Program of SCM+FSA st I is_closed_on s,P & I is_halting_on s,P holds
( ( for k being Element of NAT st k <= LifeSpan ((P +* I),(Initialize s)) holds
( IC (Comput ((P +* (Directed I)),(Initialize s),k)) = IC (Comput ((P +* (I ';' J)),(Initialize s),k)) & CurInstr ((P +* (Directed I)),(Comput ((P +* (Directed I)),(Initialize s),k))) = CurInstr ((P +* (I ';' J)),(Comput ((P +* (I ';' J)),(Initialize s),k))) ) ) & DataPart (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = DataPart (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) & IC (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = IC (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) )
let I, J be Program of SCM+FSA; ( I is_closed_on s,P & I is_halting_on s,P implies ( ( for k being Element of NAT st k <= LifeSpan ((P +* I),(Initialize s)) holds
( IC (Comput ((P +* (Directed I)),(Initialize s),k)) = IC (Comput ((P +* (I ';' J)),(Initialize s),k)) & CurInstr ((P +* (Directed I)),(Comput ((P +* (Directed I)),(Initialize s),k))) = CurInstr ((P +* (I ';' J)),(Comput ((P +* (I ';' J)),(Initialize s),k))) ) ) & DataPart (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = DataPart (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) & IC (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = IC (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) ) )
A1:
ProgramPart (Directed I) = Directed I
by RELAT_1:209;
A2:
dom (P +* (Directed I)) = NAT
by PARTFUN1:def 4;
A3:
dom (P +* (I ';' J)) = NAT
by PARTFUN1:def 4;
assume A4:
I is_closed_on s,P
; ( not I is_halting_on s,P or ( ( for k being Element of NAT st k <= LifeSpan ((P +* I),(Initialize s)) holds
( IC (Comput ((P +* (Directed I)),(Initialize s),k)) = IC (Comput ((P +* (I ';' J)),(Initialize s),k)) & CurInstr ((P +* (Directed I)),(Comput ((P +* (Directed I)),(Initialize s),k))) = CurInstr ((P +* (I ';' J)),(Comput ((P +* (I ';' J)),(Initialize s),k))) ) ) & DataPart (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = DataPart (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) & IC (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = IC (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) ) )
set s2 = Initialize s;
A5:
(Directed I) ';' J = I ';' J
by Th41;
set s1 = Initialize s;
assume A6:
I is_halting_on s,P
; ( ( for k being Element of NAT st k <= LifeSpan ((P +* I),(Initialize s)) holds
( IC (Comput ((P +* (Directed I)),(Initialize s),k)) = IC (Comput ((P +* (I ';' J)),(Initialize s),k)) & CurInstr ((P +* (Directed I)),(Comput ((P +* (Directed I)),(Initialize s),k))) = CurInstr ((P +* (I ';' J)),(Comput ((P +* (I ';' J)),(Initialize s),k))) ) ) & DataPart (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = DataPart (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) & IC (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = IC (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) )
then A7:
(LifeSpan ((P +* I),(Initialize s))) + 1 = pseudo-LifeSpan (s,P,(Directed I))
by A4, Lm2;
A8:
Directed I is_pseudo-closed_on s,P
by A4, A6, Lm2;
hereby ( DataPart (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = DataPart (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) & IC (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = IC (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) )
let k be
Element of
NAT ;
( k <= LifeSpan ((P +* I),(Initialize s)) implies ( IC (Comput ((P +* (Directed I)),(Initialize s),k)) = IC (Comput ((P +* (I ';' J)),(Initialize s),k)) & CurInstr ((P +* (Directed I)),(Comput ((P +* (Directed I)),(Initialize s),k))) = CurInstr ((P +* (I ';' J)),(Comput ((P +* (I ';' J)),(Initialize s),k))) ) )assume
k <= LifeSpan (
(P +* I),
(Initialize s))
;
( IC (Comput ((P +* (Directed I)),(Initialize s),k)) = IC (Comput ((P +* (I ';' J)),(Initialize s),k)) & CurInstr ((P +* (Directed I)),(Comput ((P +* (Directed I)),(Initialize s),k))) = CurInstr ((P +* (I ';' J)),(Comput ((P +* (I ';' J)),(Initialize s),k))) )then A9:
k < pseudo-LifeSpan (
s,
P,
(Directed I))
by A7, NAT_1:13;
then A10:
IC (Comput ((P +* (Directed I)),(Initialize s),k)) in dom (Directed I)
by A8, Def5, A1;
NPP (Comput ((P +* (Directed I)),(Initialize s),k)) = NPP (Comput ((P +* (I ';' J)),(Initialize s),k))
by A5, A8, A9, Th32;
hence A11:
IC (Comput ((P +* (Directed I)),(Initialize s),k)) = IC (Comput ((P +* (I ';' J)),(Initialize s),k))
by COMPOS_1:230;
CurInstr ((P +* (Directed I)),(Comput ((P +* (Directed I)),(Initialize s),k))) = CurInstr ((P +* (I ';' J)),(Comput ((P +* (I ';' J)),(Initialize s),k)))A13:
Directed I c= I ';' J
by SCMFSA6A:55;
then B14:
dom (Directed I) c= dom (I ';' J)
by GRFUNC_1:8;
thus CurInstr (
(P +* (Directed I)),
(Comput ((P +* (Directed I)),(Initialize s),k))) =
(P +* (Directed I)) . (IC (Comput ((P +* (Directed I)),(Initialize s),k)))
by A2, PARTFUN1:def 8
.=
(Directed I) . (IC (Comput ((P +* (Directed I)),(Initialize s),k)))
by A10, FUNCT_4:14
.=
(I ';' J) . (IC (Comput ((P +* (Directed I)),(Initialize s),k)))
by A10, A13, GRFUNC_1:8
.=
(P +* (I ';' J)) . (IC (Comput ((P +* (I ';' J)),(Initialize s),k)))
by A11, B14, FUNCT_4:14, A10
.=
CurInstr (
(P +* (I ';' J)),
(Comput ((P +* (I ';' J)),(Initialize s),k)))
by A3, PARTFUN1:def 8
;
verum
end;
NPP (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = NPP (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1)))
by A4, A6, A5, A7, Lm2, Th32;
hence
( DataPart (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = DataPart (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) & IC (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = IC (Comput ((P +* (I ';' J)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) )
by COMPOS_1:230, COMPOS_1:138; verum