CSC151 2007S, Class 26: Other Forms of List Recursion

I continue to reserve time at the start of class reserved for anything
you want to discuss.

Admin:
* Defenestrate 
* ANONYMOUS STUDENT - IF YOU ARE GOING TO BLOW OFF MY CLASS, YOU COULD AT 
  LEAST SEND ME AN EMAIL RATHER THAN SENDING YOUR FRIEND A TEXT MESSAGE!
* Distributed: Exam 2 
  * Note that the exam is not officially open for criticism until the 
    start of class, so don't send me error messages before then.  
* On Thursday, John Stone speaks about using open documentation formats.
* EC for attending the Orchestra performance on Saturday and cheering on
  your colleagues
* EC for attending Vanishing Marion and cheering the hem job on 
  Renee's black pants.
* EC for attending Mary B. James
* Advance warning: I leave town after class next Tuesday.

Overview:
* Questions and answers.
* Patterns of list recursion.
* Recursive predicates.