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|Noun||1.||mathematical group - a set that is closed, associative, has an identity element and every element has an inverse|
subgroup - (mathematics) a subset (that is not empty) of a mathematical group
set - (mathematics) an abstract collection of numbers or symbols; "the set of prime numbers is infinite"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.