Why does Element show up in a type error using Foldable (not MonoFoldable) in ClassyPrelude?...

How to write a "retryForever" function in Haskell using exception handling?...

How to understand `MonadUnliftIO`'s requirement of "no stateful monads"?...

Cannot understand why MonoFoldable for my type doesn't compile, or the error message...

Yeson.json.object is applied to too many arguments...

Is there a convenient way to construct larger type level Peano numbers using mono-traversable?...

Classy-Prelude (head . head)...