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单词 NormalIsNotTransitive
释义

normal is not transitive


The phrase “normal is not transitive” can be used as a mnemonic for two statements.

The first is: “The relationMathworldPlanetmathPlanetmath ‘is a normal subgroupMathworldPlanetmath of’ is not transitiveMathworldPlanetmathPlanetmathPlanetmathPlanetmathPlanetmath.” This means that, if HNG, it does not follow that HG. See normality of subgroups is not transitive for more details.

The second is: “The relation ‘is a normal extensionMathworldPlanetmath of’ is not transitive.” This means that, if K/F and L/K are normal extensions, it does not follow that L/F is normal. See example of normal extension for more details.

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更新时间:2025/5/4 9:17:16