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The study or use of numbers and shapes to calculate, represent, or describe things.

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method

__Negative Cardinality__A mathematical set property of having less than 0 elements (Just like antimatter in Physics.)

project

__Quantitative Cardinality Sets Project__Brining sets with quantifiabiable cardinality into common use in mathematics.

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__project__]__Wikipedia:Mathematics__

I'm thinking that our interests should extract the most useful info from the Wikipedia here, for someone understand the subject domain, tweet-like wikipedia articles possible?