What do 出ている and 中上級向け文法書 express here


This is from a mail my language partner wrote me lastly.

For some context, I added some pre- and posttext:
アンドレアスさんが言っているのは、「経験・経歴を表すテイル形」のことだと思います。 **これは中上級向け文法書に出ている使い方で、少し難しいです。**
まず、現在進行形の文と区別するために、必ず過去を表す言葉と一緒に使います。

The sentence in question (above in bold): これは **中上級向け** 文法書 **に出ている**
使い方で、少し難しいです。

My attempt at translation: "Concerning this, it being the way of use brought
up (?) in (?) the grammar book aimed at middle high grade , it is a bit hard."

My main issue lies with 中上級 on the one hand, and に出ている on the other. I guess
中上級 is just "high grade learner" on a "medium" level. に出ている is a bit harder
for me. 出る is a verb I of course encounter quite a lot, but I still struggle a
bit with the use of particles xD Usually I see に being used when going towards
something or into something. Here, clearly something comes "out" of something.
I just feel a bit unsure about wether に can be used for this purpose here or
not. ^^




> これは **中上級** 向け文法書に **出ている** 使い方で、少し難しいです。

(1) Regarding 中上級, my understanding was the same as l'électeur's translation.
In other words, it means "intermediate and advanced level".  
I think many Japanese including me understand about the level of learning and
training in any field as follows:

> It is common to distinguish the skill in three as "初級", "中級" and "上級" in
> many cases. In this case, when distinguishing the upper level from "初級
> _beginner/elementary level_ ", we call it "中上級" instead of "中級と上級". Needless
> to say, "中級と上級" is correct, but "中上級" is easier to pronounce than "中級と上級".

I'd never doubted this understanding until I read the questioner's question.

As I read the question, I felt a little uncertainty to my understanding, so I
tried to search on the Internet with the keyword of "中上級".

At first I found a site that is using this word at a certain tennis-wear shop.
[Here](http://www.pikitennis.com/magmag13.html), players are divided into five
levels according to the skill of tennis as follows: 初級, 初中級, 中級, **中上級** and
上級.  
Obviously here, "中上級" is not the meaning of "中級と上級", but it is understood that
it is the level between "中級" and "上級".

The usage of "中上級" of this shop is not a mistake at all, but I think it is an
exception when thinking in general.

In the explanation [here](http://www.idobata.online/?p=222) about magazines
for people who learn Japanese clearly use "中上級" as the meaning that is
understood by l'électeur and me as follows.

> 『 **中上級** のにほんご』は、「初級を修了した日本語学習者が、読む力、理解する力、日本を知る力を養うための素材」として作成された月刊誌。 _"
> **中上級** のにほんご" is a monthly magazine published as "Japanese learners who
> have completed beginner/elementary level read, understand and develop the
> ability to understand Japan."_

(2) Regarding 出ている, it means 出る defined as follows in jisho.org
[here](https://jisho.org/search/%E5%87%BA%E3%82%8B).

> 出{で}る  
>  6. to appear (in print); to be published; to be announced; to be issued; to
> be listed; to come out​

* * *

# EDIT

Aside from "中上級" used in the strict sense as the fourth group by the tennis-
wear shop, the expression with "中上級" collectively representing "中級と上級" has, I
think, two nuances.

**Nuance 1** : "中上級" in the questioner's question or "中上級" in "中上級のにほんご"
quoted by me is used as a word collectively referring to groups other than
"初級". In this case, they are widely targeting from intermediate people who
have just graduated from beginners to people who are quite good at Japanese,
so the level of contents described in texts or magazines are neither too
difficult nor too easy, so it can be imagined that careful ingenuity that can
be accepted by people of at a certain level and also at a wide level is being
done. In this nuance, I think that the expression "中上級" is more natural than
"中級と上級".

**Nuance 2** : There is the expression "小中学生" or "中高生". The former clearly
points to "小学生と中学生 _elementary school students and junior high school
students_ ", and the latter clearly points to "中学生と高校生 _junior high school
students and high school students_ ". For example, when you say "中高生", it
clearly refers to "中学生と高校生 _junior high school students and high school
students_ ", which is not used instead of "小学生を除いた生徒 _students excluding
elementary school students_ " collectively, so "大学生 _college students_ " are
not included in it.  
I am going to show an example sentence where "中上級" clearly(?) points to
"中級と上級" as follows.  
"中上級クラスの皆さんは初級クラスの人と違って既に勉強/練習の仕方は分かっていると思いますので、各々のレベルに応じて各自適切に勉強/練習してください。
_Hi, you guys who are members of 中上級, not of 初級! I think that you already know
how to study/practice for yourself, so I expect each of you to learn/practice
properly according to each of your level_ ".




> 「これは中上級{ちゅうじょうきゅう}向{む}け文法書{ぶんぽうしょ}に出{で}ている使{つか}い方{かた}で、少{すこ}し難{むずか}しいです。」

「出{で}る」 has **_so_** many meanings besides the obvious "to exit".

「出ている」, in this context, means **"to be listed", "to be included", "to be
introduced"** , etc.

The 「に」 is a location marker here -- "It's listed **_in_** the book.".

So your translation looks alright. My own would be:

> "This is an usage that is listed in the intermediate or advanced grammar
> books and it is rather difficult."

