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Mathematics Low‑priority This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MathematicsWikipedia:WikiProject MathematicsTemplate:WikiProject Mathematicsmathematics Low This article has been rated as Low-priority on the project's priority scale.

A page for Koszul complex would be good.

how is 3. different to 4.and what is the nature of their difference in their use? — Preceding unsigned comment added by 203.17.215.22 (talk) 09:44, 5 January 2017 (UTC)[reply]

how is 6. useful at all?