PLOGHELP ATOM                                 Chris Mellish, August 1982
                                Revised by Kathryn Seifert  October 1986

Predicate which succeeds if its argument is an atom

    ?- atom(X).

Keywords: atom, atomic

This goal will succeed if X is an atom.

-- RELATED DOCUMENTATION ----------------------------------------------

PLOGHELP * ATOMIC
 Predicate which will succeed if its argument is an atom or a number