\DownarrowThe symbol \Downarrow is used to represent a downward double arrow. It is often used in mathematical logic and set theory to denote implication or a downward movement in a sequence or hierarchy.
Indicates that A implies B in a logical expression.
A \Downarrow BShows that if x is an element of set A, then it is also an element of set B.
x \in A \Downarrow x \in BRepresents a sequence of implications or steps in a proof.
P \Downarrow Q \Downarrow R