objvprolog

from The Free On-line Dictionary of Computing (8 July 2008)

ObjVProlog

   {Logic programming} and {object-orientation}, an adaptation of
   the {ObjVlisp} model to {Prolog}.

   ["ObjVProlog: Metaclasses in Logic", J. Malenfant, ECOOP '89,
   Cambridge U Press 1989, pp.257-269].