Changes by: Aleksey Nogin (nogin at cs.caltech.edu)
Date: 2001-07-11 08:23:32 -0700 (Wed, 11 Jul 2001)
Revision: 3326
Log message:
- trivialT can now do equalRefT and equalSymT when necessary to match
the conclusion with a hypothesis.
- turned couple of Itt_equal rules from primitives into interactives
- fixed a few FOL proofs
- removed some obsolete files