Talk:Zero morphism

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Mathematics rating:	Start Class	Low Priority	Field: Foundations, logic, and set theory
Please update this rating as the article progresses, or if the rating is inaccurate. Click to show/hide comments. Please add to or update the comments to suggest improvements to the article. Geometry guy 17:14, 2 June 2007 (UTC)

I don't feel the courage to define ring and group morphisms, and I think the categoric characterization is too much for most readers. David.Monniaux 22:39, 17 Sep 2003 (UTC)

just redirect them to ring and group homomorphisms. wshun 22:41, 17 Sep 2003 (UTC)

Wshun is right; no need to define here, just link. But all of the links to this page are already talking about category theory, so we should be able to put that in here. In fact, I'd put the examples from algebra (groups and rings) at Zero homomorphism instead. -- Toby Bartels 11:50, 28 Sep 2003 (UTC)

[edit] definition of constant

A morphism is zero if and only if it is constant and coconstant.

I can't find the defintion of constant morphism under Constant_morphism. It justs says:

The first characterization of constant functions given above, is taken as the motivating and defining property for the more general notion of constant morphism in Category theory.