# Talk:Introduction to Category Theory/Products and Coproducts of Sets

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This page is long. Subsets, power sets and partially ordered sets can be defined seperately on their own pages. Hillgentleman|Talk 12:26, 18 February 2008 (UTC)

## Divisiblity Poset Diagram 2[edit source]

I think there should be a line from the 30 to the 1 in the diagram "Divisibility poset {5,10,15,30}". Natschil (discuss • contribs) 07:37, 7 August 2013 (UTC)

## problem sets?[edit source]

Would it be possible to get problem sets along with each lesson? Diagrams are helpful but doing exercises help it sink in a bit better. --Farleyknight 04:47, 25 December 2008 (UTC)