\xRightarrow{abc}The command \xRightarrow{abc} is used to create an extensible right double arrow with a label 'abc' above it. This is often used in mathematical proofs or derivations to indicate a transformation or implication that is labeled for clarity.
Indicates a transformation from A to B with label 'abc'.
A \xRightarrow{abc} BShows the process of solving from x to y with the label 'solve'.
x \xRightarrow{solve} yIndicates that P leads to Q by certain properties, with the label 'by properties'.
P \xRightarrow{by\ properties} Q