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What does って mean in this sentence?

> 世の中には、頑張っても無駄な人 **って** いますか。
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2016-10-04T21:20:47.910
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words
What does って mean here?
It means [は or it can mean というものは](http://maggiesensei.com/2012/05/07/direct-
indirect-speech-%EF%BC%86%E3%81%A3%E3%81%A6tte/).
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2016-10-04T21:55:08.700
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That usage of って is a very colloquial way of speaking and would not be seen in
written Japanese.

I only speak from personal experience but. It sort of group everything i just
said until now into a noun, then ask something about it.

As mentioned before it could be replaced by は or というもの or even ということ but it
somehow feels a little bit stronger than that to me. Like in the usage of と to
group everything before it in some sort of "speech brackets" but instead used
for some kind of invisible "target of a question brackets".
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2016-10-06T04:30:17.837
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It signifies that you are referring to a class of things, or type of things
rather than a specific thing.

E.g. consider マグカップ高い. When changed to マグカップって高い, it claims mugs in general
are expensive. The longer form is マグカップっていうものは高い, although this sounds a bit
too fancy when talking about mugs. For a more "profound" subject like
母っていうものはそういうもんだ, it sounds natural to use the longer form.
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2016-10-06T07:46:46.840
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It means "is". informal term for a "は".  
Example:

  * それって高くない？ - Isn't it expensive?
  * 彼ってかっこいいよね。 - Is he cool.
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