英语语法分析

A semigroup is called an I-semigroup if it is not in itself a group but its every real-bi-ideal is group.

如果一个半群的每个真双理想都是群，而它本身不是群，则称这个半群为i半群。

A left seminormal orthodox semigroup is an orthodox semigroup whose idempotents form a left seminormal band.

左半正规纯正半群是幂等元集形成左半正规带的纯正半群。