What I know singleton methods can be called by the objects, on which it 
is defined. Now in the below example `C` is also
an object of `Class` and singleton method `a_class_method` defined on 
the `Class` object `C`. So how does another `Class` object `D` able
to call `a_class_method`? How does object `individuation` principle 
holds in this example?


class C
end
#=> nil
def C.a_class_method
puts "Singleton method defined on #{self}"
end
#=> nil
C.a_class_method
Singleton method defined on C
#=> nil
class D < C
end
#=> nil
D.a_class_method
Singleton method defined on D
#=> nil

-- 
Posted via http://www.ruby-forum.com/.