name for a mutually inclusive relationship

[Ethan Furman]

On 2/25/21 7:06 PM, Joe Pfeiffer wrote:
> Ethan Furman writes:

>> Like I said, at this moment I don't have a good example, only an awareness that such a thing could exist and I don't know the name for it (if it has one).
>>
>> So far I have seen that there are even fewer good use-cases than I might have guessed, and that no one seems to have a name for the general idea.
> 
> Do you have a specific problem you're trying to solve?

No, I just came across the concept in my browsing and was wondering if there was a name for it.  I think the most accurate name at this point is probably "pain in the butt".  ;-)

--
~Ethan~