{- Exercise 2.2 -}
-- 2.2.1
{-
You can add the evaluation steps as comments here:
if 5 * 8 <= 70 && 7 - 8 < 0 then 8 `div` 2 else 90
= ...
-}

{-
if 7 - 8 > 0 then 8 `div` 2 else (if 7 * 7 == 49 then 0 else 49)
= ...
-}

-- 2.2.2
noe :: Integer -> Integer
noe n = undefined

-- 2.2.3
arbitraryFun :: Integer -> Integer
arbitraryFun x = undefined


{- Exercise 2.3 -}
-- 2.3.1
mod1 :: Integer -> Integer -> Integer
mod1 x y = undefined

isDivisible :: Integer -> Integer -> Bool
isDivisible x y = undefined

-- 2.3.2
stl :: Integer -> Integer
stl x = undefined

-- 2.3.3
repl :: Integer -> Bool
repl x = undefined