Changes by: Aleksey Nogin (nogin at cs.caltech.edu)
Date: 2006-02-09 23:16:10 -0800 (Thu, 09 Feb 2006)
Revision: 8658
Log message:

      - Implemented the splitNatT tactic that does case wplit (0 or not) for a
        natural number.
      
      - Added a missing item (the "not{m = n in nat}" hyp) to the appropriate
        arithT/omegaT resource (ge_elim).