let s be State of SCM+FSA ; for I being InitHalting keepInt0_1 Program of SCM+FSA holds (IExec I,s) . (intloc 0 ) = 1
let I be InitHalting keepInt0_1 Program of SCM+FSA ; (IExec I,s) . (intloc 0 ) = 1
not intloc 0 in NAT
then A2:
not intloc 0 in dom (s | NAT )
by RELAT_1:86;
ProgramPart (s +* (Initialized I)) halts_on s +* (Initialized I)
by Th5, FUNCT_4:26;
then A3:
( Initialized I c= s +* (Initialized I) & ex n being Element of NAT st
( Result (ProgramPart (s +* (Initialized I))),(s +* (Initialized I)) = Comput (ProgramPart (s +* (Initialized I))),(s +* (Initialized I)),n & CurInstr (ProgramPart (s +* (Initialized I))),(Result (ProgramPart (s +* (Initialized I))),(s +* (Initialized I))) = halt SCM+FSA ) )
by AMI_1:def 22, FUNCT_4:26;
thus (IExec I,s) . (intloc 0 ) =
((Result (ProgramPart (s +* (Initialized I))),(s +* (Initialized I))) +* (s | NAT )) . (intloc 0 )
by SCMFSA6B:def 1
.=
(Result (ProgramPart (s +* (Initialized I))),(s +* (Initialized I))) . (intloc 0 )
by A2, FUNCT_4:12
.=
1
by A3, Def3
; verum