Question

The set of negative integer
has least upper bound is​

Answer 1

Step-by-step explanation:

T = { −1,− 1 2 ,− 1 3 ,− 1 4 ,− 1 5 ,... } , then T is visibly nonempty, and also T has an upper bound: any positive number is an upper bound, since all of the elements of T are negative. The least upper bound for T is 0. The set Z of all integers has no upper bound and has no least upper bound