Definition:Limit of Sequence/Real Numbers
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Definition
Let $\sequence {x_n}$ be a sequence in $\R$.
Let $\sequence {x_n}$ converge to a value $l \in \R$.
Then $l$ is a limit of $\sequence {x_n}$ as $n$ tends to infinity.
This is usually written:
- $\ds l = \lim_{n \mathop \to \infty} x_n$
Also see
Also known as
A limit of $\sequence {x_n}$ as $n$ tends to infinity can also be presented more tersely as a limit of $\sequence {x_n}$ or even just limit of $x_n$.
Some sources present $\ds \lim_{n \mathop \to \infty} x_n$ as $\lim_n x_n$.
Sources
- 1975: Bert Mendelson: Introduction to Topology (3rd ed.) ... (previous) ... (next): Chapter $2$: Metric Spaces: $\S 5$: Limits: Definition $5.1$
- 1977: K.G. Binmore: Mathematical Analysis: A Straightforward Approach ... (previous) ... (next): $\S 4$: Convergent Sequences: $\S 4.4$: Definition of Convergence