# Start a new discussion

## Not signed in

Want to take part in these discussions? Sign in if you have an account, or apply for one below

## Site Tag Cloud

Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.

• CommentRowNumber1.
• CommentAuthorUrs
• CommentTimeSep 11th 2012
• (edited Sep 11th 2012)

I have touched the formatting at direct sum and then expanded a little:

1. Added a paragraph to the Idea-section such that something familiar is mentioned right at the beginning;

2. Expanded on the example of direct sums in $Ab$ by drawing the cocone diagrams and explicitly mentioning the universal property.

3. Mentioned the relation to formal linear combinations.

4. Mentioned the examples of direct sums of modules.

• CommentRowNumber2.
• CommentAuthorR.Arthur
• CommentTimeNov 25th 2021

Changed the array to a proper tikz-cd