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I went ahead and put the definition for vector spaces before that for categories. I think that the most fundamental example should be before the definition in full generality. It is important to realize that not every mathematician is comfortable with the language of categories, whereas all are familiar with vector spaces. Furthermore, the most common versions of the cokernel (abelian groups and modules over a commutative ring) do not require this level of generality, and can be extrapolated from the vector space definition. silly rabbit ( talk) 12:41, 14 March 2008 (UTC)
I came to this page because "left null space" redirects here, and I wanted to read up on that concept from linear algebra. However, to one uninitiated in category theory, this page is incomprehensible to the extent that I can't even tell if it's about a concept that maps to the one I know as "left null space" or something completely different.
If the page is about left null spaces in linear algebra, it should be re-written to at least give an introduction that doesn't require advanced math from a different field; if it's about a different concept, the redirect should be removed. 131.112.112.6 ( talk) 03:02, 23 October 2015 (UTC)
The universal property diagram is clipped such that the Q' looks like Q. This is super misleading. (Sorry I do not know how to fix svg file.) — Preceding unsigned comment added by Simple Symbol ( talk • contribs) 00:58, 6 March 2019 (UTC)
This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||
|
I went ahead and put the definition for vector spaces before that for categories. I think that the most fundamental example should be before the definition in full generality. It is important to realize that not every mathematician is comfortable with the language of categories, whereas all are familiar with vector spaces. Furthermore, the most common versions of the cokernel (abelian groups and modules over a commutative ring) do not require this level of generality, and can be extrapolated from the vector space definition. silly rabbit ( talk) 12:41, 14 March 2008 (UTC)
I came to this page because "left null space" redirects here, and I wanted to read up on that concept from linear algebra. However, to one uninitiated in category theory, this page is incomprehensible to the extent that I can't even tell if it's about a concept that maps to the one I know as "left null space" or something completely different.
If the page is about left null spaces in linear algebra, it should be re-written to at least give an introduction that doesn't require advanced math from a different field; if it's about a different concept, the redirect should be removed. 131.112.112.6 ( talk) 03:02, 23 October 2015 (UTC)
The universal property diagram is clipped such that the Q' looks like Q. This is super misleading. (Sorry I do not know how to fix svg file.) — Preceding unsigned comment added by Simple Symbol ( talk • contribs) 00:58, 6 March 2019 (UTC)