Changes by: Jason Hickey (jyh at cs.caltech.edu)
Date: 2005-11-23 09:36:43 -0800 (Wed, 23 Nov 2005)
Revision: 8204
Log message:

      Generalized the type of ML extract functions.  The previous
      definitions had assumed that the assumptions (and their
      arities) was unchanged.
      
      Added extracts for all the ML rules.