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Discussion related to SharePoint Hosted App
Anything related to set theory. For instructions how to render MathJax(TeX) in chat see http://meta.math.stackexchange.com/a/3297
For students, teachers, and linguists wanting to discuss the finer points of the Chinese language. Resources: http://chinese.stackexchange.com/questions/1120/resources-for-learning-mandarin-chinese
This room is to list questions (old and new) that need closing with a brief explanation. Also you can list low-quality posts that need extra attention.
Discussions about differential geometry in an informal spirit
Discuss anything out of Atiyah-Macdonald's "Introduction to Commutative Algebra"; Commutative Algebra in general.
General discussion for http://expressionengine.stackexchange.com
For any discussions about general topology. For instructions how to render MathJax(TeX) in chat see http://meta.math.stackexchange.com/a/3297