[1 of 1] Compiling Main             ( /in/foo.hs, /tmp/Main.o )

/in/foo.hs:6:40: error:
    * Couldn't match expected type `[(a0 -> a0 -> a0)
                                     -> Integer -> Integer]'
                  with actual type `Integer -> Integer -> [Integer]'
    * Probable cause: `list' is applied to too few arguments
      In the second argument of `map', namely `list'
      In the second argument of `(:)', namely
        `map (\ x -> (x * x) mod b) list'
      In the expression: a : map (\ x -> (x * x) mod b) list