Building Skills in Python (PDF Version)
Second sentence of 1st Paragraph located below the first loop sketch example: "Since x must be greater than or equal to 1, ..."
In order to match the supplied assertion of x > 1, this should probably read: "Since x must be greater than 1, ..."
All my best,
P.S. This section, 9.7 A Digression, is a perfect example of the comprehensive nature of this book. Thank you Steven for including these great references!