Re: [Haskell-beginners] Compiler can't deduce Bool as instance of ToField

The type of 5: Prelude> :t 5 5 :: Num a => a That's why it works. The literal's type uses the type class. Other fun stuff: Prelude> :t "asdf" "asdf" :: [Char] Prelude> :set -XOverloadedStrings Prelude> :t "asdf" "asdf" :: Data.String.IsString a => a