questions how to restrict the domain to make the ules work? 2. even if the definition orks is it meaningful? Nol we we'l add the third rule the measure of any interval (a, b] on real line should be b-a this make the definition semantically works How about other complex sets? The measure machine will do it automatically for you. So how it works?questions • 1. how to restrict the domain to make the rules work? • 2. even if the definition works, is it meaningful? – No! we we’ll add the third rule : the measure of any interval (a,b] on real line should be b-a. this make the definition semantically works. – How about other complex sets? – The measure machine will do it automatically for you. So how it works?