Previous: Function Names and Symbols, Up: Symbols [Index]
So far, we have encountered three different kinds of LISP objects:
LISP imposes an additional layer of organization upon these objects.
Namely, we use the term atom to refer to just aboutany LISP object
that is not viewed as having parts. In particular, numbers and
symbols are both considered to be atoms; lists are not. Symbols are
sometimes referred to as literal atoms, a term that emphasizes their
common heritage with other primitive LISP elements.