atom type question

["Scott E. Fahlman" <Fahlman@C.CS.CMU.EDU>]

    CLtL says, p. 73 "The predicate ATOM is true if its argument
    is not a cons."

    Is ATOM supposed to be true of non-COMMON data types as well?

My opinion: unless the non-Common data type is a subtype of CONS, ATOM
should be true of it.

-- Scott