chi questions

chi answers

• GHC type functions and scoped type variables
• GADT with Type level Bool - making (&&) type operator imply constraints for its arguments
• How do I efficiently add existentially typed safe money values?
• How can Data.Function's `on` function be generalized to work with n-ary functions?
• GHCi not infering instance for some IO action
• Why Can't I Construct a Singleton List of Symbol?
• Can iterate be written with a fold?
• Difference between type family and partial newtype? (and partial data?)
• How can I pattern match conditionally in a list comprehension in Haskell
• Haskell: Verify that every implementation for a function in a typeclass is commutative