Standard elements of the lattice of all monoid varieties are described. In particular, it is shown that in this lattice, the property of being a standard element is equivalent to being a neutral element.

中文翻译：

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类半体变种的格的标准元素

描述了所有monoid变体的晶格的标准元素。特别地，示出了在该格子中，成为标准元素的性质等同于成为中性元素。