List questions from yoneda-lemma

Published on 05 Dec 2017 - 14:11

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Yoneda lemma natural isomorphism proof question

Published on 18 Dec 2017 - 0:21

187

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MacLane's proof in CWM that every set valued functor is a colimit of representable functors- why is his natural transformation well defined?

Published on 01 Jan 2018 - 17:58

283

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Extension of functor between small categories to presheaves - proof check

Published on 01 Jan 2018 - 22:04

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Yoneda-Lemma as generalization of Cayley`s theorem?

Published on 06 Aug 2010 - 7:43

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Proof of Yoneda Lemma

Published on 25 Dec 2011 - 9:10

11.4k

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What use is the Yoneda lemma?

Published on 02 Jan 2012 - 3:17

1.5k

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Yoneda Lemma Exercises

Published on 09 Feb 2012 - 23:33

1k

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Excessive use of the Yoneda lemma

Published on 24 May 2012 - 20:49

96

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When is an isomorphism between representable functors natural?

Published on 23 Feb 2026 - 4:44

512

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Confusion about the Yoneda lemma

Published on 17 Aug 2020 - 15:49

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Basic question about Yoneda's lemma

Published on 22 Aug 2020 - 10:59

161

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Are extensions of simplicial objects to functors $\mathsf{sSet} \to \mathsf{C}$ Kan extensions?

Published on 23 Feb 2026 - 4:49

112

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Is there a unique natural transformation of functors $t : F \to F'$ such that $t(U) = T(\text{Id}_F(U))$?

Published on 05 Sep 2020 - 8:02

152

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Topology: A Categorical Approach Chapter 0 Exercise 6 (Yoneda lemma)

Published on 28 Sep 2020 - 1:51

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Understanding the proof of Yoneda Embedding

Yoneda lemma natural isomorphism proof question

MacLane's proof in CWM that every set valued functor is a colimit of representable functors- why is his natural transformation well defined?

Extension of functor between small categories to presheaves - proof check

Yoneda-Lemma as generalization of Cayley`s theorem?

Proof of Yoneda Lemma

What use is the Yoneda lemma?

Yoneda Lemma Exercises

Excessive use of the Yoneda lemma

When is an isomorphism between representable functors natural?

Confusion about the Yoneda lemma

Basic question about Yoneda's lemma

Are extensions of simplicial objects to functors $\mathsf{sSet} \to \mathsf{C}$ Kan extensions?

Is there a unique natural transformation of functors $t : F \to F'$ such that $t(U) = T(\text{Id}_F(U))$?

Topology: A Categorical Approach Chapter 0 Exercise 6 (Yoneda lemma)

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