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[Merged by Bors] - feat: port Algebra.GroupPower.Ring#979

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[Merged by Bors] - feat: port Algebra.GroupPower.Ring#979
joelriou wants to merge 7 commits intomasterfrom
algebra-group-power-ring

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Mathlib SHA: fc2ed6f838ce7c9b7c7171e58d78eaf7b438fb0e

@joelriou joelriou added WIP Work in progress mathlib-port This is a port of a theory file from mathlib. labels Dec 13, 2022
@joelriou joelriou added awaiting-review and removed WIP Work in progress labels Dec 13, 2022
theorem neg_pow (a : R) (n : ℕ) : (-a) ^ n = (-1) ^ n * a ^ n :=
neg_one_mul a ▸ (Commute.neg_one_left a).mul_pow n

/- Porting note: bit0 and bit1 are deprecated
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We're still porting lemmas about bit0 and bit1, as we need some fraction of them later.

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kim-em commented Dec 13, 2022

bors merge

@github-actions github-actions bot added ready-to-merge This PR has been sent to bors. and removed awaiting-review labels Dec 13, 2022
bors bot pushed a commit that referenced this pull request Dec 13, 2022
Mathlib SHA: fc2ed6f838ce7c9b7c7171e58d78eaf7b438fb0e

Co-authored-by: Scott Morrison <scott.morrison@gmail.com>
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bors bot commented Dec 13, 2022

Pull request successfully merged into master.

Build succeeded:

@bors bors bot changed the title feat: port Algebra.GroupPower.Ring [Merged by Bors] - feat: port Algebra.GroupPower.Ring Dec 13, 2022
@bors bors bot closed this Dec 13, 2022
@bors bors bot deleted the algebra-group-power-ring branch December 13, 2022 21:55
bors bot pushed a commit to leanprover-community/mathlib3 that referenced this pull request Dec 15, 2022
Regenerated from the [port status wiki page](https://github.com/leanprover-community/mathlib/wiki/mathlib4-port-status).
Relates to the following PRs:
* `algebra.euclidean_domain.basic`: leanprover-community/mathlib4#919
* `algebra.field.basic`: leanprover-community/mathlib4#975
* `algebra.group.opposite`: leanprover-community/mathlib4#912
* `algebra.group.prod`: leanprover-community/mathlib4#968
* `algebra.group.with_one.units`: leanprover-community/mathlib4#955
* `algebra.group_power.ring`: leanprover-community/mathlib4#979
* `algebra.hom.equiv.type_tags`: leanprover-community/mathlib4#943
* `algebra.hom.ring`: leanprover-community/mathlib4#958
* `algebra.invertible`: leanprover-community/mathlib4#930
* `algebra.order.field.canonical.basic`: leanprover-community/mathlib4#1018
* `algebra.order.field.canonical.defs`: leanprover-community/mathlib4#985
* `algebra.order.field.inj_surj`: leanprover-community/mathlib4#1017
* `algebra.order.group.densely_ordered`: leanprover-community/mathlib4#956
* `algebra.order.group.min_max`: leanprover-community/mathlib4#933
* `algebra.order.group.prod`: leanprover-community/mathlib4#1026
* `algebra.order.group.with_top`: leanprover-community/mathlib4#946
* `algebra.order.hom.monoid`: leanprover-community/mathlib4#944
* `algebra.order.monoid.prod`: leanprover-community/mathlib4#987
* `algebra.order.monoid.to_mul_bot`: leanprover-community/mathlib4#1024
* `algebra.order.ring.abs`: leanprover-community/mathlib4#929
* `algebra.order.ring.cone`: leanprover-community/mathlib4#935
* `algebra.order.sub.basic`: leanprover-community/mathlib4#936
* `algebra.order.sub.with_top`: leanprover-community/mathlib4#932
* `algebra.order.with_zero`: leanprover-community/mathlib4#903
* `combinatorics.quiver.arborescence`: leanprover-community/mathlib4#997
* `combinatorics.quiver.cast`: leanprover-community/mathlib4#990
* `control.traversable.lemmas`: leanprover-community/mathlib4#948
* `data.bool.set`: leanprover-community/mathlib4#960
* `data.int.cast.field`: leanprover-community/mathlib4#1016
* `data.int.cast.lemmas`: leanprover-community/mathlib4#995
* `data.int.cast.prod`: leanprover-community/mathlib4#1015
* `data.int.div`: leanprover-community/mathlib4#1011
* `data.int.dvd.basic`: leanprover-community/mathlib4#996
* `data.int.order.basic`: leanprover-community/mathlib4#938
* `data.nat.cast.basic`: leanprover-community/mathlib4#980
* `data.nat.cast.prod`: leanprover-community/mathlib4#1010
* `data.nat.cast.with_top`: leanprover-community/mathlib4#1019
* `data.nat.gcd.basic`: leanprover-community/mathlib4#965
* `data.nat.order.basic`: leanprover-community/mathlib4#907
* `data.nat.order.lemmas`: leanprover-community/mathlib4#927
* `data.nat.set`: leanprover-community/mathlib4#961
* `data.nat.upto`: leanprover-community/mathlib4#1020
* `data.pequiv`: leanprover-community/mathlib4#1008
* `data.set.basic`: leanprover-community/mathlib4#892
* `data.set.bool_indicator`: leanprover-community/mathlib4#988
* `data.set.image`: leanprover-community/mathlib4#949
* `data.set.n_ary`: leanprover-community/mathlib4#969
* `data.set.opposite`: leanprover-community/mathlib4#983
* `data.set.prod`: leanprover-community/mathlib4#1004
* `data.set.sigma`: leanprover-community/mathlib4#982
* `data.set_like.basic`: leanprover-community/mathlib4#993
* `data.two_pointing`: leanprover-community/mathlib4#984
* `logic.embedding.set`: leanprover-community/mathlib4#986
* `logic.equiv.embedding`: leanprover-community/mathlib4#1021
* `order.directed`: leanprover-community/mathlib4#963
* `order.rel_iso.set`: leanprover-community/mathlib4#1005
* `order.well_founded`: leanprover-community/mathlib4#970
* `ring_theory.coprime.basic`: leanprover-community/mathlib4#899



Co-authored-by: Jireh Loreaux <loreaujy@gmail.com>
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