Pointwise limits in a functor category

ID: pointwise-limits-in-a-functor-category

For small diagrams with complete codomain, choose each objectwise categorical limit. For , its projections uniquely define the arrow through . The universal property proves identity and composition laws. The same projection calculation makes every categorical cone factorization a natural transformation. Hence these are genuine categorical limits in the functor category, and the objectwise forgetful functor is a limit-creating functor.

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