6 ms·
Ironically, [join](http://hackage.haskell.org/package/base-4.9.0.0/docs/Control-Monad.html#v:join http://hackage.haskell.org/package/base-4.9.0.0/docs/Control..
by involans 10y ago
Ironically, [join](http://hackage.haskell.org/package/base-4.9.0.0/docs/Control-Monad.html#v:join http://hackage.haskell.org/package/base-4.9.0.0/docs/Control...) is a function on `Monad`, not `Monoid` - so `Joinable` wouldn't have been a great choice.