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November 1st, 2011, 10:06 AM  #1 
Newbie Joined: Nov 2011 Posts: 1 Thanks: 0  function question
Let f : A ? B and g : B ? C be two onetoone correspondences, what are the domain and the range of (g ? f )?1. Show that (g ? f )?1 = f ?1 ? g?1

November 1st, 2011, 10:44 PM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,926 Thanks: 2205 
Do you understand the question? If so, what progress have you made so far?


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