Alternative strategy for scanning out definitions

Consider an alternative strategy for scanning out definitions that translates the example in the text to

(lambda 
  (let ((u '*unassigned*)
        (v '*unassigned*))
    (let ((a )
          (b ))
      (set! u a)
      (set! v b))
    ))

Here a and b are meant to represent new variable names, created by the interpreter, that do not appear in the user's program. Consider the solve procedure from section 3.5.4:

(define (solve f y0 dt)
  (define y (integral (delay dy) y0 dt))
  (define dy (stream-map f y))
  y)

Will this procedure work if internal definitions are scanned out as shown in this exercise? What if they are scanned out as shown in the text? Explain.

Nobody's finished this exercise yet. You'll be the first!