how they get from this expression |An+1 - An - L|<e to L-e<An+1 - An<L+e cant understand this transition ??
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Originally Posted by transgalactic how they get from this expression |An+1 - An - L|<e to L-e<An+1 - An<L+e cant understand this transition ?? We know that if then it is also true (by definition) that . So applying this concept to your inequality we get . Adding to the inequality gives
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