exhaust_tac can now deal with whole terms rather than just variables.
exhaust_tac can now deal with whole terms rather than just variables.

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