sub-group

英['sʌbgruːp] 美['sʌbgruːp]
  • n.亚群;子群
名词 subgroup:
  1. a distinct and often subordinate group within a group

  2. (mathematics) a subset (that is not empty) of a mathematical group

    用作名词 (n.)
    1. Thus a subgroup of a group is a subset on which the binary product and the unary operation of inversion satisfy the closure axiom.
      所以群的子群是在其上二元乘法和一元逆运算满足闭包公理的子集。