let s be State of SCM+FSA ; :: thesis: for I being good InitHalting Program of SCM+FSA
for a being read-write Int-Location st I does_not_destroy a & s . (intloc 0 ) = 1 holds
( Times a,I is_closed_on s & Times a,I is_halting_on s )
let I be good InitHalting Program of SCM+FSA ; :: thesis: for a being read-write Int-Location st I does_not_destroy a & s . (intloc 0 ) = 1 holds
( Times a,I is_closed_on s & Times a,I is_halting_on s )
let a be read-write Int-Location ; :: thesis: ( I does_not_destroy a & s . (intloc 0 ) = 1 implies ( Times a,I is_closed_on s & Times a,I is_halting_on s ) )
assume A1: I does_not_destroy a ; :: thesis: ( not s . (intloc 0 ) = 1 or ( Times a,I is_closed_on s & Times a,I is_halting_on s ) )
assume A2: s . (intloc 0 ) = 1 ; :: thesis: ( Times a,I is_closed_on s & Times a,I is_halting_on s )

per cases ( s . a > 0 or s . a <= 0 ) ;

suppose A4: s . a > 0 ; :: thesis: ( Times a,I is_closed_on s & Times a,I is_halting_on s )

Directed (loop (if=0 a,(Goto (insloc 2)),(I ';' (SubFrom a,(intloc 0 ))))) = loop (if=0 a,(Goto (insloc 2)),(I ';' (SubFrom a,(intloc 0 )))) by SCMFSA6A:63;
then Directed (loop (if=0 a,(Goto (insloc 2)),(I ';' (SubFrom a,(intloc 0 ))))) is_pseudo-closed_on s by A1, A2, A4, Th73;
hence ( Times a,I is_closed_on s & Times a,I is_halting_on s ) by A4, SCMFSA8C:68; :: thesis: verum

end;

suppose A5: s . a <= 0 ; :: thesis: ( Times a,I is_closed_on s & Times a,I is_halting_on s )

( Stop SCM+FSA is_closed_on s & Stop SCM+FSA is_halting_on s ) by SCMFSA7B:24, SCMFSA7B:25;
hence ( Times a,I is_closed_on s & Times a,I is_halting_on s ) by A5, SCMFSA8B:24; :: thesis: verum

end;

end;