After the f o g and g o f, there is a something and a v.

What is that?

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- September 26th 2011, 08:34 PMdwsmithWhat is this notation
After the f o g and g o f, there is a something and a v.

What is that? - September 26th 2011, 09:31 PMDrexel28Re: What is this notation
That is an iota. Usually it indicates an \.

- September 27th 2011, 12:38 AMzoekRe: What is this notation
- September 27th 2011, 01:39 AMDevenoRe: What is this notation
normally iota is used for an inclusion morphism. if the sub-object is the same as the target of the morphism (just as any set can be a subset of itself), then this becomes the identity map.