page 608, in Modifying Modules, paragraph 4, line 7 : r instead of or
receiving module r one of its ancestor modules, and Module#included?(module) which returns
-----> ^
page 608, in Modifying Modules, paragraph 4, line 7 : r instead of or
receiving module r one of its ancestor modules, and Module#included?(module) which returns
-----> ^
Yep. thanks