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YCor
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We have a short exact sequence $1 \to H \to G \to K \to 1 $, where $H$ and $K$ are $\textbf{abelian}$abelian residually finite groups. My question is: it is true that $G$ is then a residually finite group?.

Thanks and Besties!

We have a short exact sequence $1 \to H \to G \to K \to 1 $, where $H$ and $K$ are $\textbf{abelian}$ residually finite groups. My question is: it is true that $G$ is then a residually finite group?.

Thanks and Besties!

We have a short exact sequence $1 \to H \to G \to K \to 1 $, where $H$ and $K$ are abelian residually finite groups. My question is: it is true that $G$ is then a residually finite group?.

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Martin Sleziak
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We have a short exact sequence $1 \to H \to G \to K \to 1 $, where $H$ and $K$ are $\textbf{abelian}$ residually finite groups. My quiestionquestion is: it is true that G$G$ is then a residually finite group?.

Thanks and Besties!

We have a short exact sequence $1 \to H \to G \to K \to 1 $, where $H$ and $K$ are $\textbf{abelian}$ residually finite groups. My quiestion is: it is true that G is then a residually finite group?.

Thanks and Besties!

We have a short exact sequence $1 \to H \to G \to K \to 1 $, where $H$ and $K$ are $\textbf{abelian}$ residually finite groups. My question is: it is true that $G$ is then a residually finite group?.

Thanks and Besties!

added missing word in title
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YCor
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Is an extension of two abelian residually finite groups a residually finite group?

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