Naive Lie Theory
《Naive Lie Theory》 · 印刷第 21 页 Chapter 2 章首域的约定、第 43 页 Section 3.2「Diagonalizable groups and tori」3.2.1 的定义条件及第 45 页 3.2.7 开头的完整名词词形用法（省略中间内容；不摘录推论结论）
$k$ is an algebraically closed field and $F$ a subfield. All algebraic varieties are over $k$. […] A linear algebraic group $G$ is diagonalizable if it is isomorphic to a closed subgroup of some group $\mathbf D_n$ of diagonal matrices. […] Let $G$ be a diagonalizable group.