\[\begin{array}{l|l}
\text{when we write...} & \text{we mean the tree...} \\\hline
\text{map :: (a -> b) -> [a] -> [b]} & \text{map :: (a -> b) -> ([a] -> [b]) }\\
\text{min :: Int -> Int -> Int} & \text{min :: Int -> (Int -> Int)}\\
\text{compose :: (a -> b) -> (b -> c) -> a -> c} & \text{compose :: (a -> b) -> ((b -> c) -> (a -> c))}
\end{array}\]