Definition:Functor Preserving Limits
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Definition
Let $\mathbf C$, $\mathbf D$ and $\mathbf J$ be metacategories.
Let $F: \mathbf C \to \mathbf D$ be a functor.
Then $F$ preserves limits of type $\mathbf J$ if and only if for all diagrams $D: \mathbf J \to \mathbf C$ with limit ${\varprojlim \,}_j \, D_j$:
- $\map F {{\varprojlim \,}_j \, D_j} \cong {\varprojlim \,}_j \, F D_j$
where $F D: \mathbf J \to \mathbf D$ is the composition of $F$ with $D$.
Also see
Sources
- 2010: Steve Awodey: Category Theory (2nd ed.) ... (next): $\S 5.5$: Definition $5.24$