Ivan Shishkin, Birch Grove

Image of a map

Definition / Set theory /

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The image of a map f:A→Bf:A\rightarrow B is the subset of BB consisting of all elements which are attained by ff :
Im⁡(f)={f(a):a∈A}.\operatorname{Im}(f)=\{f(a): a\in A\}.

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