apfelmus <apfelmus <at> quantentunnel.de> writes:

[ .. lengthy discussion and implementation .. ]

> As an example, we have
> 
>   Just "Earth" == lookup (at "Milky Way" </> at "Sun") universe
> 
> assuming that
> 
>   universe :: Data.Map String (Data.Map String String)

All this hard work for something that in a lesser language would be the
unimpressive:  universe["Milky Way"]["Sun"] ;-P

--
G.





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