Bourbaki

Corollary

Tag 06LE, permanent. Cite it as [Bourbaki, Tag 06LE].

Algebra, chapter V, § 8. Norms and traces

— Put m=[F:E]m = [F : E]; then for every x∈Ex \in E we have

TrF/K(x)=m⋅TrE/K(x)NF/K(x)=NE/K(x)m. \text{Tr}_{F/K}(x) = m \cdot \text{Tr}_{E/K}(x) \\ \text{N}_{F/K}(x) = \text{N}_{E/K}(x)^m .

Bourbaki puts the proof directly after the statement, so what is above is the statement and its proof together.

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Cites

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Transcribed from the printed edition, 2003, Springer. Not translated.