1. The problem statement, all variables and given/known data Given a set A that contains all numbers of the form, n/(n+1), where n is a positive integer, a.explain why the number 1.1 is not the lub of A. b.explain why the number 0.95 is no the lub of A. 2. Relevant equations 3. The attempt at a solution a. Suppose 1.1 is the lub of A. Then it follows, from the least upper bound axiom, that i. 1.1 is an upper bound of A and ii. 1.1≤y, if y is an upper bound for A. Since there exists y<1.1, such as y=1.01, we can see that l.l is not the lub of A. Thus, a contradiction. (I'm not sure if I formatted this proof accurately (as I'm fairly new to proofs)). b.It follows in a similar manner to a., although here I will show the first property of the lub isn't satisfied. That is, the number is not a upper bound.