let s be State of SCM+FSA; :: thesis: for P being Instruction-Sequence of SCM+FSA
for I being Program of SCM+FSA st I is_closed_on s,P & I is_halting_on s,P holds
( Directed I is_pseudo-closed_on s,P & pseudo-LifeSpan (s,P,(Directed I)) = (LifeSpan ((P +* I),(Initialize s))) + 1 )
let P be Instruction-Sequence of SCM+FSA; :: thesis: for I being Program of SCM+FSA st I is_closed_on s,P & I is_halting_on s,P holds
( Directed I is_pseudo-closed_on s,P & pseudo-LifeSpan (s,P,(Directed I)) = (LifeSpan ((P +* I),(Initialize s))) + 1 )
let I be Program of SCM+FSA; :: thesis: ( I is_closed_on s,P & I is_halting_on s,P implies ( Directed I is_pseudo-closed_on s,P & pseudo-LifeSpan (s,P,(Directed I)) = (LifeSpan ((P +* I),(Initialize s))) + 1 ) )
set s1 = Initialize s;
set s2 = Initialize s;
set m1 = LifeSpan ((P +* I),(Initialize s));
assume that
A3: I is_closed_on s,P and
A4: I is_halting_on s,P ; :: thesis: ( Directed I is_pseudo-closed_on s,P & pseudo-LifeSpan (s,P,(Directed I)) = (LifeSpan ((P +* I),(Initialize s))) + 1 )
A5: dom I = dom (Directed I) by FUNCT_4:99;

A6: now

let n be Element of NAT ; :: thesis: ( n < (LifeSpan ((P +* I),(Initialize s))) + 1 implies IC (Comput ((P +* (Directed I)),(Initialize s),n)) in dom (Directed I) )
assume n < (LifeSpan ((P +* I),(Initialize s))) + 1 ; :: thesis: IC (Comput ((P +* (Directed I)),(Initialize s),n)) in dom (Directed I)
then n <= LifeSpan ((P +* I),(Initialize s)) by NAT_1:13;
then Comput ((P +* I),(Initialize s),n) = Comput ((P +* (Directed I)),(Initialize s),n) by A3, A4, Th35;
then IC (Comput ((P +* I),(Initialize s),n)) = IC (Comput ((P +* (Directed I)),(Initialize s),n)) ;
hence IC (Comput ((P +* (Directed I)),(Initialize s),n)) in dom (Directed I) by A3, A5, SCMFSA7B:def 6; :: thesis: verum

end;

card I = card (Directed I) by Th33;
then A7: IC (Comput ((P +* (Directed I)),(Initialize s),((LifeSpan ((P +* I),(Initialize s))) + 1))) = card (Directed I) by A3, A4, Th36;
hence A8: Directed I is_pseudo-closed_on s,P by A6, Def3; :: thesis: pseudo-LifeSpan (s,P,(Directed I)) = (LifeSpan ((P +* I),(Initialize s))) + 1
for n being Element of NAT st not IC (Comput ((P +* (Directed I)),(Initialize s),n)) in dom (Directed I) holds
(LifeSpan ((P +* I),(Initialize s))) + 1 <= n by A6;
hence pseudo-LifeSpan (s,P,(Directed I)) = (LifeSpan ((P +* I),(Initialize s))) + 1 by A7, A8, Def5; :: thesis: verum