suppose that the set S has a least upper bound L.Prove that L is unique.(how do you do proofs?)?

2 ⤊

how do you start off proofs?

2007-02-03 07:20:12 · 2 answers · asked by cicikiz 1 in Science & Mathematics ➔ Mathematics

You need to use proof by contradiction. The proof would start:

Suppose that S has two distinct upper limits, L1 and L2. Then, ...

2007-02-03 10:11:01 · answer #1 · answered by aepacino 2 · 1⤊ 0⤋

Well suppose there are 2 and you'll see...

2007-02-03 07:28:29 · answer #2 · answered by gianlino 7 · 1⤊ 0⤋