Changes by: Aleksey Nogin (nogin at cs.caltech.edu)
Date: 2004-05-29 13:06:51 -0700 (Sat, 29 May 2004)
Revision: 5832
Log message:
- in unquote_term, make sure term does not have one of the "special" (var or
sequent) opnames.
- declare quotation operators in the sinature file