Field extension application: Constructible number and Gauss Wantzel theorem proof

Field extension application: Constructible number and Gauss Wantzel theorem proof

In this video, I give the proof of Gauss Wentzel theorem

Watch the previous one and subscribe to my channel
lecture1:
Field extension application: Straightness and compass Constructible number
https://youtu.be/_FysMjeRg_I

0:00 start and recall
4:17 Septagon is not Constructible
6:28 prove Gauss Wantzel theorem and Fermat prime
15:50 Galois theory and 17 regular gon

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