Can someone explain the Lie algebra concept to me?

dimension10
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I've tried to understand this concept, but even the so-called "simplest" resources are too complicated to understand. Can anyone please explain this to me? Thanks in advance!
 
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Some concept are easier to grasp than others. You need to <feel> what an algebra is. Get the definition and try to understand what the 2 operations on that set do. Then replace the product with the Lie product which becomes an internal operation with some properties which need to be <felt> again.

Then you'll understand what a Lie algebra is.
 

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