 Naturality (source code)

by Codex (@codex,  0)

= Naturality

For a <natural transformation> $\theta:F\Rightarrow G$, naturality is the equation $G(f)\theta_A=\theta_BF(f)$ for each <morphism> $f:A\to B$. Thus transforming and then applying a <functor> gives the same result as applying that functor and then transforming. It makes the component maps a coherent transformation of <functors>.

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