let aa be Int-Location ; :: thesis: not Stop SCM+FSA refersrefer aa
A1: rng (Stop SCM+FSA ) = {(halt SCM+FSA )} by AFINSQ_1:36;
let i be Instruction of SCM+FSA ; :: according to SCMFSA7B:def 2 :: thesis: ( not i in proj2 (Stop SCM+FSA ) or not i refersrefer aa )
assume i in rng (Stop SCM+FSA ) ; :: thesis: not i refersrefer aa
then i = halt SCM+FSA by A1, TARSKI:def 1;
hence not i refersrefer aa by SCMFSA8C:78; :: thesis: verum