CSC151.01 2006S, Class 27: Pairs and Pair Structures

Admin:
* Upcoming EC
  * Thursday's convo: Interpretation of Race in American Museums
  * Thursday's Tuesday Extra: Women in Computer Science at Grinnell.
  * Wednesday 4:15 out transgendered uu minister look at posters

* Reading for tomorrow: "Deep Recursion"
Overview:
* Questions.
* Lab.

/Comments and Reflections/

(define last
  (lambda (pairthing)
    (if (pair? pairthing)
        (if (null? (cdr pairthing))
            (last (car pairthing))
            (last (cdr pairthing)))
        pairthing)))