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The true sign of intelligence is not knowledge but imagination.
Isomorphism Theorem
The First Isomorphism Theorem
The First Isomorphism Theorem 給定一個 homomorphism $\phi$ 之後,他的 kernel $K$ 也會是 normal subgroup。拿這個 kernel 去做 quotient group 其實就是把母集合分割成許多互斥的 coset,而且這些 coset 自己還能形成群。 而如果是拿 kernel 做,那麼處在同一個 coset 的元...
Posted by Maggie on July 8, 2022
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