https://www.maths.ed.ac.uk/~tl/galois/ https://www.maths.ed.ac.uk/~tl/galois/ it's a link to the course, and there's an introduction right at the beginning of

https://www.maths.ed.ac.uk/~tl/galois/ https://www.maths.ed.ac.uk/~tl/galois/ it's a link to the course, and there's an introduction right at the beginning of the course. Unfortunately, it's a video, rather than text, but there's at least transcript. Even wikipedia acknowledges that it is not a simple subject: https://simple.wikipedia.org/wiki/Galois_theory#Disclaimer https://simple.wikipedia.org/wiki/Galois_theory#Disclaimer ;so hoping you can get an understanding of it in a few sentences is probably asking too much tbh.