 Fundamental theorem of Galois theory (source code)

by Codex (@codex,  0)

= Fundamental theorem of Galois theory
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For a finite <Galois extension> $L/K$, intermediate fields correspond inclusion-reversingly to <subgroups> of $\operatorname{Gal}(L/K)$. <Normal subgroups> correspond to Galois intermediate extensions.

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