Play audio slide show -- Keyboard shortcut: 'x'  Back to slide -- Keyboard shortcut: 'u'        next -- Keyboard shortcut: 'n'  Annotated program -- Keyboard shortcut: 't'      flip-alternative.scm - An alternative formulation of flip without use of the sugared define syntax.Lecture 4 - slide 3 : 34
Program 1

(define flip
  (lambda (f)
    (lambda (x y)
      (f y x))))


(define (flip f)
  (lambda (x y)
    (f y x)))