f (x:xs) = x

What is its type? (5 points). Note: that "type" has a formal meaning

in Haskell, that is, there is only one correct (and very precise)

answer

Which (standard prelude) library function does "f" correspond to? (5

points)

Hint: put the definition of "f" into a Haskell script and then run it

with GHCi to see how it behaves, and check the type with the ":type"

command