Lemma 7.13.
Assuming that:
C
a
small
almost totally-supported
regular
category
Then
there exists an isomorphism-
reflecting
regular
functor
I
:
C
→
C
′
, where
C
′
is also
small
and
almost totally-supported
, such that for every
well-supported
A
∈
ob
C
there exists a morphism
1
→
I
A
in
C
′
not factoring through
I
(
m
)
for any proper
subobject
m
:
A
′
↣
A
in
C
.