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  Common LISP Object System
       
          (CLOS) An object-oriented extension to Common LISP, based
          on generic functions, multiple inheritance, declarative
          method combination and a meta-object protocol.  A
          descendant of CommonLoops and based on Symbolics FLAVORS
          and Xerox LOOPS, among others.
       
          See also PCL.
       
          ["Common LISP Object System Specification X3J13 Document
          88-002R", D.G.  Bobrow et al, SIGPLAN Notices 23 (Sep 1988)].
       
          (1994-11-30)