# Multiple group mentions based on overlapping membership
**URL:** https://meta.discourse.org/t/multiple-group-mentions-based-on-overlapping-membership/58345
**Category:** Feature
**Tags:** multi-lingual
**Created:** [Mars 4, 2017, 1:09 UTC](https://meta.discourse.org/t/multiple-group-mentions-based-on-overlapping-membership/58345 "2017-03-04T13:09:10Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@tophee](https://meta.discourse.org/u/tophee)
#### Post date: [Mars 4, 2017, 1:09 UTC](https://meta.discourse.org/t/multiple-group-mentions-based-on-overlapping-membership/58345/1 "2017-03-04T13:09:10Z")
Here is what I suppose to be an easy to implement feature (correct me if I’m wrong) with great potential: multi-group mentions. More precisely: multi-group mentions based on a logical AND conjunction, @groupX∧groupY, as it were. In plain English: the message will be sent to all members who are a member of both group X AND group Y
Unless I missed something, currently you can only send notifications/messages to groups based on a logical OR conjunction, i.e. by simply mentioning multiple groups.
So what might a multi-group-and-mention be useful for? For example, imagine a multi-lingual site, where speakers of a specific language are members of dedicated language groups. Furthermore, they can also me members of groups dedicated to specific interests. Multi-group-and-mentions would make it possible to address, for example all French speaking members with a specific interest.
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [Mars 4, 2017, 7:51 UTC](https://meta.discourse.org/t/multiple-group-mentions-based-on-overlapping-membership/58345/2 "2017-03-04T19:51:52Z")
You can simply mention multiple groups like @groupa @groupb already.
---
### Author:  [@tophee](https://meta.discourse.org/u/tophee)
#### Post date: [Mars 4, 2017, 7:59 UTC](https://meta.discourse.org/t/multiple-group-mentions-based-on-overlapping-membership/58345/3 "2017-03-04T19:59:37Z")
My understanding is that @groupa @groupb will combine the two groups with an OR: the mention will go to any member who is a member in either groupa OR groupb. My suggestion is an [AND conjunction](https://en.wikipedia.org/wiki/Logical_conjunction): the mention will go to all members who are a member of both groupa AND groupb.
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [Mars 4, 2017, 8:06 UTC](https://meta.discourse.org/t/multiple-group-mentions-based-on-overlapping-membership/58345/4 "2017-03-04T20:06:14Z")
That is correct but any other behavior seems awfully strange to me.
---
### Author:  [@tophee](https://meta.discourse.org/u/tophee)
#### Post date: [Mars 4, 2017, 8:09 UTC](https://meta.discourse.org/t/multiple-group-mentions-based-on-overlapping-membership/58345/5 "2017-03-04T20:09:48Z")
I’m not suggesting to change any existing behaviour but to add a new one. Not sure how the AND mention should be written, but one way could be @(groupa,groupb).