subsemigroup

常见例句

• A subsemigroup which is also a group is called a subgroup .
  也是群的子半群叫做子群 。
• For any subset A of S there is a smallest subsemigroup T of S which contains A, and we say that A generates T.
  對於 S 的任何子集 A，存在 S 的包含 A 的一個最小的子半群 T，我們稱 A 生成 T。
• This paper presents an necessary and sufficient condition for subsemigroup to be cone ofL-group，and discusses the problem of extension on preorder groups.
  得到了子半群是L-群的正錐的一個充要條件，竝討論了先序群的擴展問題。
• If S is a semigroup, then the intersection of any collection of subsemigroups of S is also a subsemigroup of S.
  如果 S 是半群，則任何 S 的子半群的搜集的交集也是 S 的子半群。
• characteristic fuzzy subsemigroup
  特征Fuzzy子半群
• The Connection of the Locally Compact Commutative Semigroup and Infinite Closed Subsemigroup
  侷部稠密的交換半群與無限閉子半群的關系
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