reserve m,n for Nat,
  I for Program of SCM+FSA,
  s,s1,s2 for State of SCM+FSA,
  a for Int-Location,
  f for FinSeq-Location,
  p,p1,p2 for Instruction-Sequence of SCM+FSA;
reserve P,P1,P2,Q for Instruction-Sequence of SCM+FSA;

theorem
  for s be State of SCM+FSA,I be InitHalting really-closed Program of SCM+FSA
    st Initialize ((intloc 0) .--> 1) c= s &
    I c= P1 & I c= P2
  holds LifeSpan(P1,s) = LifeSpan(P2,s) &
    Result(P1,s) =  Result(P2,s) by Lm5;
