\uArr
The \uArr command in LaTeX is used to produce an upwards double arrow, typically used in mathematical contexts to denote mappings, transformations, or logical implications that move in an upward direction.
Indicates a transformation or mapping from A to B in an upward direction.
A \uArr B
Represents a logical implication or relation where x leads to y upwards.
x \uArr y
Denotes a series or sequence that is summed or considered in an upward direction.
\uArr_{n=1}^{\infty} a_n