Practice and Review #4 of Chapter 31 looks to have a result clause. However, it is written with "ut ne" rather than "ut non". Is this just a typo, as I suspect? Or is there some odd construction I don't know about? I'm pretty sure you can use "ne" in an indirect command, but like I said I'm pretty sure this is a result clause. Moreover, the indirect command isn't introduced until Chapter 36.
Thanks for your input!