??walking good embedding ag theory?? ... and so forth ...

??consider objects in ag theory of "line object l equipped with epi from 1^[n+1]"
that go to dual of cokernel of mate of epi in coherent sheaves over projective n-space... ???and so forth?? ...

??maybe some parallel idea involving filtered vector spaces... ??....

??does dualizableness of certain cokernel guarantee goodness of epi, or is that maybe automatic and the critical part is elsewhere ??... and so forth ... ??...