Modified proofs for new claset primitives.  The problem is that they enforce the "most recent added rule has priority" policy more strictly now.
Modified proofs for new claset primitives.  The problem is that they enforce
the "most recent added rule has priority" policy more strictly now.

MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle