Meaning of で in: 来月私たちのダンスの発表会があります。是非皆さんで見に来てほしいです。


> 来月私たちのダンスの発表会があります。是非皆さんで見に来てほしいです。  
>  Next month we have a dance meeting. I want everyone to come and see it.

Can someone explain what the で in this sentence means? It is not the
continuative form (連用形) of the assertive auxiliary (断定の助動詞), or "copula", だ/です
so what is it? It is not the AT で. What's going on?




I didn't find a good duplicate, so I started writing up an answer. I was
halfway into composing this when a duplicate was suggested. After reading that
answer, I think I'd like to add something of my own, at the end.

This 助詞 で can be found [here](https://ja.wiktionary.org/wiki/%E3%81%A7):

>   7. 主体を表す。  
>  こちらでやっておきます。  
>  クラスのみんなで山に登った。
>

So this で is used to indicate the agent of the action. As mentioned in the
linked answer, this is another way of seeing で as marking "how". It specifies
how something happens, with the emphasis on the entity marked by で as a whole.

> 来年もこのメンツで花見に行こう  
>  Next year, we (people who showed up today/last time) shall go see cherry
> blossoms.

In such sentences the noun marked by で is usually the agent of the action.
Your sentence thus can be understood to have 皆さんが omitted

> 是非(皆さんが)皆さんで見に来てほしいです。




I didn't find a good duplicate, so I started writing up an answer. I was
halfway into composing this when a duplicate was suggested. After reading that
answer, I think I'd like to add something of my own, at the end.

This 助詞 で can be found [here](https://ja.wiktionary.org/wiki/%E3%81%A7):

>   7. 主体を表す。  
>  こちらでやっておきます。  
>  クラスのみんなで山に登った。
>

So this で is used to indicate the agent of the action. As mentioned in the
linked answer, this is another way of seeing で as marking "how". It specifies
how something happens, with the emphasis on the entity marked by で as a whole.

> 来年もこのメンツで花見に行こう  
>  Next year, we (people who showed up today/last time) shall go see cherry
> blossoms.

In such sentences the noun marked by で is usually the agent of the action.
Your sentence thus can be understood to have 皆さんが omitted

> 是非(皆さんが)皆さんで見に来てほしいです。

