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Learn more about Venn diagrams and the union of two sets with this BBC Bitesize Maths article. For students between the ages of 11 and 14.
combinatorics Google Researcher, Long Out of Math, Cracks Devilish Problem About Sets On nights and weekends, Justin Gilmer attacked an old question in pure math using the tools of information theory. A family of sets is “union-closed” if the combination of any two sets in the family equals an existing set in the family.