\xhookleftarrow{abc}The \xhookleftarrow{abc} command in LaTeX is used to create an extensible arrow with a hook on the left side, pointing to the left, and labeled with 'abc'. This is typically used in mathematical expressions to denote mappings or transformations that are reversible or have some form of 'hook' or 'attachment' on the left side.
Indicates a reversible mapping from set B to set A with label 'abc'.
A \xhookleftarrow{abc} BRepresents a function f that maps elements from set Y to set X, with a left hook arrow.
X \xhookleftarrow{f} YDenotes a transformation \phi from space N to space M, using a left hook arrow.
M \xhookleftarrow{\phi} N