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#1 2009-03-10 11:57:52

LuisRodg
Real Member
Registered: 2007-10-23
Posts: 322

Cauchy sequence proof




Im not following something in this proof. We have that:

Why is it that:

Help appreciated!

Last edited by LuisRodg (2009-03-10 11:58:44)

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#2 2009-03-10 12:06:37

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: Cauchy sequence proof

No, strictness goes away when you take limits.

Counterexample: b_n = 1-1/n.
All of the terms of this sequence are strictly less than 1, but the limit is equal to 1.


Why did the vector cross the road?
It wanted to be normal.

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