Changes by: Jason Hickey (jyh at cs.caltech.edu)
Date: 2003-08-06 14:20:48 -0700 (Wed, 06 Aug 2003)
Revision: 4817
Log message:
Added some support for sequent operations.
subC now works correctly for sequents, but the sequent test is in the
inner loop, so it will be a little slower.
Haven't changed higherC yet.
Added sequent support in Term_op_ds.{map_up,map_down}.