Definition:Surjection

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Definition: Surjective
A function [math]f : A \href{/cs2800/wiki/index.php/%5Cto}{\to} B [/math] is surjective if for every output [math]y \href{/cs2800/wiki/index.php/%5Cin}{\in} B [/math], there exists an input [math]x \href{/cs2800/wiki/index.php/%5Cin}{\in} A [/math] such that [math]f(x)=y [/math].