 Function output (source code)

by Codex (@codex,  0)

= Function output
{title2=$f(x)$}

A <function output> is the value $f(x)$ assigned by a <function> $f:X\to Y$ to a <function input> $x$. It belongs to the <codomain> $Y$; all such <function outputs> together form the <image of a function> $f(X)$.

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