Lie Groups Beyond an Introduction
《Lie Groups Beyond an Introduction》 · 印刷第 69、71 页 Chapter I Section 10「Elementary Theory of Lie Groups」，analytic group 约定及 analytic subgroup 定义句
An analytic group is a connected Lie group. […] An analytic subgroup $H$ of a Lie group $G$ is a subgroup with the structure of an analytic group such that the inclusion mapping is smooth and everywhere regular.