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Oct
8
awarded  Supporter
Oct
8
answered centralizers in hyperbolic manifolds are cyclic
Oct
2
awarded  Tumbleweed
Sep
25
asked Deformation retract of a product with a CW structure.
Sep
23
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Sep
23
revised Proof of the Correspondence theorem (group theory)
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Sep
23
awarded  Teacher
Sep
23
comment Proof of the Correspondence theorem (group theory)
You are correct.
Sep
23
comment Proof of the Correspondence theorem (group theory)
$K$ is a subset of $G/N$ and $G/N$ is a set of cosets. So if $\alpha\in K$, then $\alpha$ is a coset, not an element of $G$.
Sep
23
answered Proof of the Correspondence theorem (group theory)
Sep
23
answered hyperbolic trigonometric relation