\RrightarrowThe \Rrightarrow command in LaTeX is used to produce a right double arrow, which is often used in mathematical contexts to denote implication or a strong form of mapping between elements or sets.
Indicates that A implies B in a strong sense.
A \Rrightarrow BDenotes a function f that maps set X to set Y with a strong implication.
f: X \Rrightarrow YExpresses that if x is an element of A, then x is also an element of B, with a strong implication.
x \in A \Rrightarrow x \in B