let s be State of SCMPDS ; for I, J being Program of SCMPDS
for k being Element of NAT st k <= LifeSpan (s +* (Initialized (stop I))) & I c= J & I is_closed_on s & I is_halting_on s holds
IC (Comput (ProgramPart (s +* (Initialized J))),(s +* (Initialized J)),k) in dom (stop I)
let I, J be Program of SCMPDS ; for k being Element of NAT st k <= LifeSpan (s +* (Initialized (stop I))) & I c= J & I is_closed_on s & I is_halting_on s holds
IC (Comput (ProgramPart (s +* (Initialized J))),(s +* (Initialized J)),k) in dom (stop I)
let k be Element of NAT ; ( k <= LifeSpan (s +* (Initialized (stop I))) & I c= J & I is_closed_on s & I is_halting_on s implies IC (Comput (ProgramPart (s +* (Initialized J))),(s +* (Initialized J)),k) in dom (stop I) )
set ss = s +* (Initialized (stop I));
set s1 = Comput (ProgramPart (s +* (Initialized J))),(s +* (Initialized J)),k;
set s2 = Comput (ProgramPart (s +* (Initialized (stop I)))),(s +* (Initialized (stop I))),k;
assume that
A1:
k <= LifeSpan (s +* (Initialized (stop I)))
and
A2:
I c= J
and
A3:
I is_closed_on s
and
A4:
I is_halting_on s
; IC (Comput (ProgramPart (s +* (Initialized J))),(s +* (Initialized J)),k) in dom (stop I)
IC (Comput (ProgramPart (s +* (Initialized J))),(s +* (Initialized J)),k) = IC (Comput (ProgramPart (s +* (Initialized (stop I)))),(s +* (Initialized (stop I))),k)
by A1, A2, A3, A4, Th39, AMI_1:121;
hence
IC (Comput (ProgramPart (s +* (Initialized J))),(s +* (Initialized J)),k) in dom (stop I)
by A3, SCMPDS_6:def 2; verum