In the paper we introduce the concepts of L-trivial, nil ordered semigroups and give every ordered semigroup is L-trivial if and only if the left divisibility relation is an order.
特别地，我们还讨论了序零半群，给出了这类半群与偏序半群上的左整除关系链的关系。
In the paper we introduce the concepts of L-trivial, nil ordered semigroups and give every ordered semigroup is L-trivial if and only if the left divisibility relation is an order.
特别地，我们还讨论了序零半群，给出了这类半群与偏序半群上的左整除关系链的关系。
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