deinterlace means progressive?

[Byungsoo]

I'm confusing about deinterlace and I searched this site but
no answers found.

"deinterlace" means "it becomes progressive" ?

For example, I wrote the following avisynth scripts .

1.
Avisource("aaa.avi")
tomsmocomp(0,15,1)
separatefields
convolution3d(...)
weave

2
Avisource("aaa.avi")
tomsmocomp(..)
convolution3d(...)

Which is right ?
After deinterlace (tomsmocomp), isn't it required "separatefield"
before conv3d and "weave" after that ?

I'm very confusing ...

PS.
one more question.
I know Avisynth filter FixBrokenChromaUpsampling is required
for canopus dv codec.
So, where does it have to go?
for example,

Avisource ("...")
<1>
tomsmocomp(...)
convolution3d(...)
<2>
bicubicresize(..)

Location <1> or <2> ?
I tested the two case, and it seems to be good quality in location <2> . but I'm not sure.
And divx5 encoding a canopus avi lost a frame number 0.
Using mainconcept was not so.
I don't know this situation is unavoidable.

[JohnMK]

A deinterlaced source will become progressive. I don't know anything about the deinterlacer you're using. Here's what I'd do if I were using Decomb as a deinterlacer:

Avisource("aaa.avi")
FieldDeinterlace()
convolution3d(...)