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@wupr wupr commented Jun 9, 2025

I promised Kevin I'd open a PR on this over a year ago and I'm finally doing it.

I have a sorry-free proof (~400 lines) of group_theory_lemma that I'll tidy up and push here in the next couple of weeks.

@kbuzzard
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Note that your fix is still wrong -- I have corrected the statement in main. AlphaProof found the error!

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wupr commented Jun 20, 2025

Right, I missed the brackets. That wasn't the final fix though. The statement I have is Nonempty (A[n] ≃+ (Fin r → ZMod n)), which I think is more idiomatic?

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