Changes by: Xin Yu (xiny at cs.caltech.edu)
Date: 2002-05-19 00:00:00 -0700 (Sun, 19 May 2002)
Revision: 3675
Log message:

      Changed one of the two associative axioms to a regular rule which can be proved from the other.
      

Changes	Path
+10 -10	metaprl/theories/czf/czf_itt_group.ml
+131 -108	metaprl/theories/czf/czf_itt_group.prla