\lrarr
The \lrarr command in LaTeX is used to create a long right arrow, typically used to denote mappings or transformations in mathematical expressions.
Denotes a function f mapping from set A to set B.
f : A \lrarr B
Indicates a transformation or mapping from x to y.
x \lrarr y
Describes the behavior of a sequence as n approaches infinity.
\text{As } n \lrarr \infty, a_n \lrarr L