Example 10.3.2.8. Let $X$ and $Y$ be sets. Then a function $f: X \rightarrow Y$ is a quotient morphism (in the category of sets) if and only if it is surjective (see Example 10.3.0.4).
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Example 10.3.2.8. Let $X$ and $Y$ be sets. Then a function $f: X \rightarrow Y$ is a quotient morphism (in the category of sets) if and only if it is surjective (see Example 10.3.0.4).