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 </P>
 
 <p>Per-class mixins are applied transitively. That means the per-class
-mixin A of a per-class mixin B is also applied for an objectin B's
+mixin A of a per-class mixin B is also applied for an object in B's
 scope. This is exactly the same as how superclasses are applied for
 instances. Consider the following example</p>