Stop show with sound  Next slide in show -- Keyboard shortcut: 'n'  51 secondsLecture 4 - slide 27 : 34
Program 1
(define (generate-double-tag-function tag-name)
  (lambda (contents . attributes)
    (double-tag tag-name contents attributes)))

(define (generate-single-tag-function tag-name)
  (lambda attributes
    (single-tag tag-name attributes)))