U+21A0 "↠" Rightwards Two Headed Arrow Unicode Character

U+21A0 "↠" Rightwards Two Headed Arrow is a typographic symbol classified under the Arrows block, visually represented as a horizontal arrow with two distinct heads on its right side. It is commonly used in mathematical notation and formal logic to denote a surjective function or an epimorphism, indicating that every element in the codomain is mapped to by at least one element in the domain. Its dual headed design distinguishes it from a standard single headed arrow, and it may also appear in diagrams or diagrams to represent a two way or bidirectional relationship when combined with other symbols.