I might be missing something here (or I'm being much too literal) but I'm studying for the PSM-I Certification and I've come across an item that might be a bit unclear (to me) yet asked on the Open Assessment and other practice sites.
QUESTION: The purpose of a Sprint is to produce a valuable and useful Increment of working product? TRUE OR FALSE (CORRECT ANSWER - TRUE)
While I accept that is a TRUE Statement - no where in the Scrum Guide does it actually state this fact in so many words.