Definition:Limit Inferior/Definition 2

Definition
Let $\sequence {x_n}$ be a bounded sequence in $\R$.

The limit inferior of $\sequence {x_n}$ is defined and denoted as:
 * $\displaystyle \map {\liminf_{n \mathop \to \infty} } {x_n} = \sup \set {\inf_{m \mathop \ge n} x_m: n \in \N}$

Also see

 * Equivalence of Definitions of Limit Inferior