Let S ~ IRbe nonempty. Show that u e IRis an upper bound of S if and only if the
Chapter 2, Problem 7(choose chapter or problem)
Let S ~ IRbe nonempty. Show that u e IRis an upper bound of S if and only if the conditions t e IRand t > u imply that t rFS.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer