My use of "atomic" was confusing because it does have precedence as
meaning "not a pair". However, I suspect that usage dates back to when
procedures were not first class.

I explained what I meant a few messages later:

 > Perhaps the property I am looking for that of is objects which are
 > eqv? according to their *value* not their *location*. This includes
 > booleans, characters, numbers, nulls, and symbols.

Sorry for the confusion.

Regards,

Alan
--
Dr Alan Watson
Centro de Radioastronomía y Astrofísica
Universidad Astronómico Nacional de México