ANSI Common Lisp   7 Objects   7.4 Meta-Objects

7.4.1 Standard Meta-objects

• The class standard-method is the default class of methods defined by the defmethod and defgeneric forms.

• The class standard-generic-function is the default class of generic functions defined by the forms defmethod, defgeneric, and defclass.

• The class named standard-object is an instance of the class standard-class and is a superclass of every class that is an instance of standard-class except itself and structure-class.

• Every method combination object is an instance of a subclass of class method-combination.