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单词 GaloisIsNotTransitive
释义

Galois is not transitive


The phrase “Galois is not transitive” is a mnemonic for the statement “The relationMathworldPlanetmathPlanetmath ‘is a Galois extensionMathworldPlanetmath of’ is not transitiveMathworldPlanetmathPlanetmathPlanetmathPlanetmathPlanetmath.” This means that, if K/F and L/K are Galois extensions (http://planetmath.org/GaloisExtension), it does not follow that L/F is Galois. This follows immediately from the fact that normal is not transitive. See example of normal extensionMathworldPlanetmath for more details.

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更新时间:2025/5/4 20:01:45