Extra Arrows beyond those provided in AMSmath
Arrows are provided to supplement \xleftarrow and \xrightarrow of the AMSMath package: \xlongequal, \xLongleftarrow, \xLongrightarrow, \xLongleftrightarrow, \xLeftrightarrow. \xlongleftrightarrow, \xleftrightarrow, \xlongleftarrow and \xlongrightarrow.
The author is Chim Cut Canh.
License: lgpl Catalogued: 2006-10-30