Talk:Category theory

	Mathematics portal This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MathematicsWikipedia:WikiProject MathematicsTemplate:WikiProject Mathematicsmathematics articles
Top	This article has been rated as Top-priority on the project's priority scale.

Computer science High‑importance

This article is within the scope of WikiProject Computer science, a collaborative effort to improve the coverage of Computer science related articles on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Computer scienceWikipedia:WikiProject Computer scienceTemplate:WikiProject Computer scienceComputer science articles

High

This article has been rated as High-importance on the project's importance scale.

Things you can help WikiProject Computer science with:

Here are some tasks awaiting attention:

Article requests :
- Requested articles/Applied arts and sciences/Computer science, computing, and Internet
Cleanup :
- Computer science articles needing attention
- Computer science articles needing expert attention
Copyedit :
- Computing
Expand :
- Computer science
Infobox :
- Computer science articles without infoboxes
Maintain :
- Timeline of computing 2020–present
Photo :
- Find pictures for the biographies of computer scientists (see List of computer scientists)
- Computing articles needing images
Stubs :
- Computer science stubs
Unreferenced :
- WikiProject Computer science/Unreferenced BLPs
Project-related :
- Tag all relevant articles in Category:Computer science and sub-categories with {{WikiProject Computer science}}

Archives

1

Why is this article separate from Category (mathematics)?[edit]

It seems to me that either they should be merged, or that at the very least, there should be hatnotes for disambiguation and context. It is too far out of my competence for me to do it, but something either is wrong, or incomplete.JonRichfield (talk) 04:33, 3 September 2020 (UTC)[reply]

My understanding is that Category (mathematics) deals with the specific object called a category, while category theory deals with categories, morphisms, natural transformations, and related subjects. Adding things like natural transformations into the category page would be flat out wrong, and I think there is plenty of evidence that such a summary page as this is notable and related. For a similar thing, I would compare set (mathematics) and set theory._{Integral Python}^{click here to argue with me} 15:45, 3 September 2020 (UTC)[reply]

Labeled directed graph?[edit]

If someone has the time, please remove the reference to "labeled directed graph". For once, it is wrong, a graph has a set of nodes, a category has a class. Also, the word graph never appears again in the whole article. And what even is the labelling supposed to represent? --345Kai (talk) 16:51, 12 April 2022 (UTC)[reply]

I agree that the the reference to graphs is definitively wrong and must be removed. The article has many other issues and needs to be completely rewritten. Just now, I have not the time for fixing them. D.Lazard (talk) 20:00, 12 April 2022 (UTC)[reply]

I have rewritten the lead completely and removed the confusing essay-like sections. D.Lazard (talk) 14:58, 13 April 2022 (UTC)[reply]

For once?

Definitively?

פשוט pashute ♫ (talk) 20:32, 7 November 2022 (UTC)[reply]

Why were the letters hom() chosen[edit]

Is it short for home? If so how does that relate to morphs? If not, why were those letters chosen? פשוט pashute ♫ (talk) 20:33, 7 November 2022 (UTC)[reply]

This the abbreviation of "homomorphism". D.Lazard (talk) 20:38, 7 November 2022 (UTC)[reply]