Changes by: Xin Yu (xiny at cs.caltech.edu)
Date: 2005-02-09 00:07:22 -0800 (Wed, 09 Feb 2005)
Revision: 6641
Log message:

      proved some rules.
      

Changes	Path
+22 -1	metaprl/theories/itt/itt_list2.ml
+5612 -4177	metaprl/theories/itt/itt_list2.prla
+2386 -2228	metaprl/theories/itt/itt_synt_bterm.prla
+1144 -554	metaprl/theories/itt/itt_synt_var.prla