anchor.diff: -;;;; Last modified: 2013-10-15 19:02:07 tkych
  +;;;; Last modified: 2013-10-15 22:24:04 tkych
   
   (define-practice
     :id       032
  
positive.code:    (=>? (prefixp '(1 2 3) '())            NIL)
     (=>? (prefixp '(0 1 2 3 4) '(1 2 3))   NIL)
     (=>? (prefixp '(0 1 2 3 4) '(2 3 4))   NIL)
     (=>? (prefixp '(0 1 2 3) '(0 1 2 3 4)) T))
    )
  
negative.code:    (prefixp '(0 1 2 3 4) '(1 2 3))   => NIL
     (prefixp '(0 1 2 3 4) '(2 3 4))   => NIL
     (prefixp '(0 1 2 3) '(0 1 2 3 4)) => T
     (prefixp '(3 4 5) '(3 4))         => NIL
  "
    :hint
    nil
  