$self->less_than($other) || $self->equal_to($other);
}
-Finally, we the C<Printable> role. This role exists solely to provide
-an interface. It has no methods, just a list of required methods. In
-this case, it just requires a C<to_string> method.
+Finally, we define the C<Printable> role. This role exists solely to
+provide an interface. It has no methods, just a list of required methods.
+In this case, it just requires a C<to_string> method.
An interface role is useful because it defines both a method and a
I<name>. We know that any class which does this role has a