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Results tagged with short-exact-sequences
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user 310
For questions about short exact sequences in various contexts, including questions on short exact sequences of groups or modules.
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Splitting lemma under assumption of the axiom of choice
I assume you are working in some fixed abelian category $\mathcal{A}$.
It is not true in general that every short exact sequence in $\mathcal{A}$ will split. The problem is that although you can pick …
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