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Results tagged with abelian-groups
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user 41947
For questions about groups whose elements commute.
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Constructively, is the unit of the “free abelian group” monad on sets injective?
Here's yet another construction of the free abelian group on an arbitrary set, and a proof of the claim. I haven't seen the proof in Mines, Richman, Ruitenburg so I don't know how similar this is to t …
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