Talk:Concrete category: Difference between revisions

Content deleted Content added

Inline

Revision as of 18:44, 22 February 2008

Mathematics Start‑class Low‑priority

	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
Start	This article has been rated as Start-class on Wikipedia's content assessment scale.
Low	This article has been rated as Low-priority on the project's priority scale.

I have given this article a major overhaul. Previously, it contained one major factual inaccuracy (the assertion that Rel can not be concretized), unprofessional language ("roughly speaking", "in everyday life"), and failed to address several key issues such as the overlap between "abstract" and "concrete". I will expand section 5 after I have found some more references. Boy Waffle (talk) 18:44, 22 February 2008 (UTC)[reply]

@@ Line 6: / Line 6: @@
 }}
+I have given this article a major overhaul.  Previously, it contained one major factual inaccuracy (the assertion that '''Rel''' can not be concretized), unprofessional language ("roughly speaking", "in everyday life"), and failed to address several key issues such as the overlap between "abstract" and "concrete".  I will expand section 5 after I have found some more references. [[User:Boy Waffle|Boy Waffle]] ([[User talk:Boy Waffle|talk]]) 18:44, 22 February 2008 (UTC)
-Are there any categories which do not allow a faithful functor into Set?
-: Sure, tons of them. But are they "natural"? [[User:Phys|Phys]] 22:18, 15 Nov 2003 (UTC)
-::Ask an algebraic topologist. [[User:Revolver|Revolver]] 10:08, 27 Apr 2005 (UTC)