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algebra (EN)
名詞

名詞 “algebra”

単数形 algebra、複数形 algebras または不可算
  1. 代数
    In algebra, we use letters like x and y to represent numbers we don't know yet.
  2. 代数(数学的構造)
    Complex numbers can be understood as an algebra over the field of real numbers.
  3. 代数系 (集合論における)
    In set theory, an algebra of sets includes all possible unions and intersections of its subsets, as well as the empty set.