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References to 'constant functor'
1. category of small categories by CWoo
2. diagonal functor by CWoo
3. equalizer is an inverse limit by CWoo
4. examples of initial objects and terminal objects and zero objects by AxelBoldt
5. F-isomorphisms in categories by joking
6. Grothendieck category by bci1
7. limit of a functor by CWoo
8. universal mapping property by MichaelMcCliment