83286
体重が増えればいいってことじゃなくて

As a beginner-intermediate learner, my first reading of the (partial) sentence
was along the lines of "it wouldn't be good to gain weight [and]..." but the
given translation has an almost opposite meaning with "it's not just that it
would be good to gain weight...".

I've been wrestling with this for a while and I think I've gotten my bearings
somewhat. The two things confusing me are (1) the positive meaning, and (2)
the "not just".

Is it right to say:

(1) it's positive because it uses the "いいじゃない" structure rather than a
negatively conjugated "よくない"? It kind of got hazy for me because of the
conversational 'ってこと' inserted, but I believe you can essentially ignore that
aspect.

(2) is the "just" essentially because of the "なくて"?

So another way to parse the ending of the sentence is something like "wouldn't
it _and_..." (because of the rhetorical negative and the -て continuation), but
in context of the "it would be good to gain weight" base you can collapse it
into "not just" getting you the final meaning?

I feel like I'm close but I'm not quite correctly parsing out the nuanced
meaning of the sentence. Like I'm 80% there. Or maybe I'm totally off!
CC BY-SA 4.0
2020-12-26T21:52:10.970
83283
2020-12-27T04:54:08.020
41353
question
grammar
Parsing positive じゃない statements — 体重が増えればいいってことじゃなくて
* AってことじゃなくてB : (it) doesn’t mean A but B
  * 体重が増えればいい : it would be fine if you gain weight
  * 体重が増えればいいってことじゃなくて : (it) doesn’t mean that you can just gain weight (but ...)
CC BY-SA 4.0
2020-12-27T04:54:08.020
83286
2020-12-27T04:54:08.020
4092
83283
answer