In mathematics, a **Lie algebra** ( /ˈliː/, not /ˈlaɪ/) is an algebraic structure whose main use is in studying geometric objects such as Lie groups and differentiable manifolds. Lie algebras were introduced to study the concept of infinitesimal transformations. The term "Lie algebra" (after Sophus Lie) was introduced by Hermann Weyl in the 1930s. In older texts, the name "**infinitesimal group**" is used.

Read more about Lie Algebra: Notation, Definition and First Properties, Examples, Structure Theory and Classification, Relation To Lie Groups, Category Theoretic Definition

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