7.2, due March 9

This section felt very straightforward and seemed to be almost logical.  I did get caught up in the finite order of an element of a group.  I read through the first few examples thinking that they were talking about the whole group, which wasn't making much sense.   Then I went back and read them more carefully and noticed that they were talking about specific elements.  This lead me to wonder if only the groups with finite order had element that had finite order as well.  Maybe this was answered in the reading and I just missed it somehow.