ABSTRACT
PreviewActivity 7.1. In Investigation 6, we considered a variety of different number systems, some
familiar and some not.While there were significant differences between these number systems, there
were also common features that seemed to be shared by all of them. In this investigation, we will
focus on these common features and their implications. With that in mind, look back at Table 6.2
(on page 73), and make a list of the properties that were satisfied by all of the number systems from
Investigation 6. Include in your list the properties that you were able to prove as well as those that
you suspected were true but were not able to prove.
