As we discussed in class, let does not add anything to the expressiveness of the language i.e., they are only a convenient notation. For instance, (let ((x v1) (y v2)) e) can be rewritten as (lambda (x y) e) v1 v2). How can you rewrite (let* ((x v1) (y v2) (z v3)) e) in terms of lambda-abstractions and function applications