Changes by: Xin Yu (xiny at cs.caltech.edu)
Date: 2005-03-16 15:00:18 -0800 (Wed, 16 Mar 2005)
Revision: 6948
Log message:

      Added BTerm{'n} and BTerm_plus{'n} in Itt_synt_bterm; Corrected last_var{'bt}
      in Itt_synt_subst.
      

Changes	Path
+9 -0	metaprl/theories/itt/itt_synt_bterm.ml
+4 -0	metaprl/theories/itt/itt_synt_bterm.mli
+3 -3	metaprl/theories/itt/itt_synt_subst.ml
+1257 -1169	metaprl/theories/itt/itt_synt_subst.prla