So far when reading the book I have only noticed this issue for the factorial notation. The book uses '! instead of `! .
Looking through the latex source it's that annoying thing where latex compiles the back-tick symbol to left quote. The only ideas I have for fixing this issue is either explicitly say "back-tick" in the text or to import the package textcomp and then use \textasciigrave instead of `.
So far when reading the book I have only noticed this issue for the factorial notation. The book uses '! instead of `! . Looking through the latex source it's that annoying thing where latex compiles the back-tick symbol to left quote. The only ideas I have for fixing this issue is either explicitly say "back-tick" in the text or to import the package textcomp and then use \textasciigrave instead of `.