Category of Functors ------------------------ If \\(\\C\\) is _small_ (\\(\\hom{\\C}\\) is a set). All functors from \\(\\C\\) to some category \\(\\D\\) form the category \\(\\mathrm{Func}(\\C,\\D)\\). - \\(\\ob{\\mathrm{Func}(\\C,\\D)}\\): Functors \\(F:\\Cā†’\\D\\) - \\(\\hom{\\mathrm{Func}(\\C,\\D)}\\): _natural transformations_ - āˆ˜: Functor composition \\(\\mathrm{Func}(\\C,\\C)\\) is the category of endofunctors of \\(\\C\\).