Thanks to Alees Seehausen who co-taught the Discrete Mathematics course with me in 2015 and helped develop many of the Investigate! activities and other problems currently used in the text. She also offered many suggestions for improvement of the expository text, for which I am quite grateful. Thanks also to Katie Morrison, Nate Eldredge and Richard Grassl (again) for their suggestions after using parts of this text in their classes.
in-context