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[Merged by Bors] - feat: add Algebra.discr_localizationLocalization #6422

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@xroblot xroblot commented Aug 7, 2023

We prove

theorem Algebra.discr_localizationLocalization (b : Basis ι R S) :
  Algebra.discr Rₘ (b.localizationLocalization Rₘ M Aₘ) = algebraMap R Rₘ (Algebra.discr R b) 

We need for that to prove the analogue for the trace of Algebra.norm_localization (that was the only result in RingTheory.Localization.Norm). Since the results are added to this file, it is renamed to RingTheory.Localization.NormTrace (not sure about the name though).


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@xroblot xroblot force-pushed the xfr-localization_discriminant branch from 2cfb8e9 to 58ae073 Compare August 7, 2023 12:36
@xroblot xroblot added WIP Work in progress awaiting-CI t-algebra Algebra (groups, rings, fields etc) labels Aug 7, 2023
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ericrbg commented Aug 7, 2023

can you make the moving of the file be one commit? maybe with git mv? because at the moment it's really hard to see the diff

@xroblot xroblot force-pushed the xfr-localization_discriminant branch from 58ae073 to 6fc9e3c Compare August 7, 2023 22:14
@xroblot xroblot added awaiting-review The author would like community review of the PR awaiting-CI and removed WIP Work in progress labels Aug 7, 2023
@leanprover-community-mathlib4-bot leanprover-community-mathlib4-bot added the merge-conflict The PR has a merge conflict with master, and needs manual merging. label Aug 10, 2023
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xroblot commented Aug 11, 2023

can you make the moving of the file be one commit? maybe with git mv? because at the moment it's really hard to see the diff

I used your suggestion and used git mv. Hopefully, it will make it easier to review this PR. Thanks!

@leanprover-community-mathlib4-bot leanprover-community-mathlib4-bot removed the merge-conflict The PR has a merge conflict with master, and needs manual merging. label Aug 11, 2023
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ericrbg commented Aug 11, 2023

lgtm!

maintainer merge

the diff is best seen here: 6fd5d64 (#6422)

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🚀 Pull request has been placed on the maintainer queue by ericrbg.

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🚀 Pull request has been placed on the maintainer queue by ericrbg.

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bors bot commented Aug 11, 2023

✌️ xroblot can now approve this pull request. To approve and merge a pull request, simply reply with bors r+. More detailed instructions are available here.

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xroblot commented Aug 11, 2023

bors r+

bors bot pushed a commit that referenced this pull request Aug 11, 2023
We prove
```lean
theorem Algebra.discr_localizationLocalization (b : Basis ι R S) :
  Algebra.discr Rₘ (b.localizationLocalization Rₘ M Aₘ) = algebraMap R Rₘ (Algebra.discr R b) 
```
We need for that to prove the analogue for the trace of `Algebra.norm_localization` (that was the only result in `RingTheory.Localization.Norm`). Since the results are added to this file, it is renamed to `RingTheory.Localization.NormTrace` (not sure about the name though).
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@bors bors bot changed the title feat: add Algebra.discr_localizationLocalization [Merged by Bors] - feat: add Algebra.discr_localizationLocalization Aug 12, 2023
@bors bors bot closed this Aug 12, 2023
@bors bors bot deleted the xfr-localization_discriminant branch August 12, 2023 00:46
semorrison pushed a commit that referenced this pull request Aug 14, 2023
We prove
```lean
theorem Algebra.discr_localizationLocalization (b : Basis ι R S) :
  Algebra.discr Rₘ (b.localizationLocalization Rₘ M Aₘ) = algebraMap R Rₘ (Algebra.discr R b) 
```
We need for that to prove the analogue for the trace of `Algebra.norm_localization` (that was the only result in `RingTheory.Localization.Norm`). Since the results are added to this file, it is renamed to `RingTheory.Localization.NormTrace` (not sure about the name though).
semorrison pushed a commit that referenced this pull request Aug 15, 2023
We prove
```lean
theorem Algebra.discr_localizationLocalization (b : Basis ι R S) :
  Algebra.discr Rₘ (b.localizationLocalization Rₘ M Aₘ) = algebraMap R Rₘ (Algebra.discr R b) 
```
We need for that to prove the analogue for the trace of `Algebra.norm_localization` (that was the only result in `RingTheory.Localization.Norm`). Since the results are added to this file, it is renamed to `RingTheory.Localization.NormTrace` (not sure about the name though).
semorrison pushed a commit that referenced this pull request Aug 15, 2023
We prove
```lean
theorem Algebra.discr_localizationLocalization (b : Basis ι R S) :
  Algebra.discr Rₘ (b.localizationLocalization Rₘ M Aₘ) = algebraMap R Rₘ (Algebra.discr R b) 
```
We need for that to prove the analogue for the trace of `Algebra.norm_localization` (that was the only result in `RingTheory.Localization.Norm`). Since the results are added to this file, it is renamed to `RingTheory.Localization.NormTrace` (not sure about the name though).
semorrison pushed a commit that referenced this pull request Aug 17, 2023
We prove
```lean
theorem Algebra.discr_localizationLocalization (b : Basis ι R S) :
  Algebra.discr Rₘ (b.localizationLocalization Rₘ M Aₘ) = algebraMap R Rₘ (Algebra.discr R b) 
```
We need for that to prove the analogue for the trace of `Algebra.norm_localization` (that was the only result in `RingTheory.Localization.Norm`). Since the results are added to this file, it is renamed to `RingTheory.Localization.NormTrace` (not sure about the name though).
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4 participants