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[Merged by Bors] - feat(ring_theory): every division_ring is_noetherian #7661

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@semorrison semorrison commented May 19, 2021

semorrison and others added 30 commits May 4, 2021 19:55
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🎉 Great news! Looks like all the dependencies have been resolved:

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Thanks 🎉

bors merge

@github-actions github-actions bot added ready-to-merge All that is left is for bors to build and merge this PR. (Remember you need to say `bors r+`.) and removed awaiting-review The author would like community review of the PR labels Jun 10, 2021
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Co-authored-by: Scott Morrison <scott.morrison@gmail.com>
Co-authored-by: Johan Commelin <johan@commelin.net>
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Co-authored-by: Scott Morrison <scott.morrison@gmail.com>
Co-authored-by: Johan Commelin <johan@commelin.net>
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Co-authored-by: Scott Morrison <scott.morrison@gmail.com>
Co-authored-by: Johan Commelin <johan@commelin.net>
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Co-authored-by: Johan Commelin <johan@commelin.net>
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Co-authored-by: Johan Commelin <johan@commelin.net>
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@bors bors bot changed the title feat(ring_theory): every division_ring is_noetherian [Merged by Bors] - feat(ring_theory): every division_ring is_noetherian Jun 12, 2021
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…13386)

Some lemmas have typeclass arguments that are in fact inferrable from the earlier ones, at least when everything is Prop valued this is unecessary so we clean up a few cases as they likely stem from typos or library changes. 

- `src/field_theory/finiteness.lean` it wasn't known at the time (#7644) that a division ring was noetherian, but now it is (#7661)
- `src/category_theory/simple.lean` any abelian category has all cokernels so no need to assume it seperately
- `src/analysis/convex/extreme.lean` assumed `linear_ordered_field` and `no_smul_zero_divisors` which is unnecessary, we take this as a sign that this and a couple of other convexity results should be generalized to densely ordered linear ordered rings (of which there are examples that are not fields) cc @YaelDillies
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