282 8. AF Embeddability
(4) Is every exact QD C*-algebra AF embeddable? This, of course, is
the ultimate goal as it would give an abstract characterization of
subalgebras of AF algebras. Most days we conjecture this problem
has an affirmative answer.8.6. References
The main results of Sections 8.1 and 8.2 come from [51], while the results
found in Sections 8.3 and 8.4 are from [131].