[Merged by Bors] - chore: New file for lattice ordered groups#9457
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YaelDillies wants to merge 4 commits intomasterfrom
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[Merged by Bors] - chore: New file for lattice ordered groups#9457YaelDillies wants to merge 4 commits intomasterfrom
YaelDillies wants to merge 4 commits intomasterfrom
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Split `Algebra.Order.LatticeGroup` into two files: * `Algebra.Order.Group.Lattice` for general properties of lattice ordered groups * `Algebra.Order.Group.PosPart` for properties of the positive and negative parts Note that the latter also contains properties of the absolute value. These will be moved to `Algebra.Order.Group.Abs` in a later PR. Part of #9411
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Split `Algebra.Order.LatticeGroup` into two files: * `Algebra.Order.Group.Lattice` for general properties of lattice ordered groups * `Algebra.Order.Group.PosPart` for properties of the positive and negative parts Note that the latter also contains properties of the absolute value. These will be moved to `Algebra.Order.Group.Abs` in a later PR. Part of #9411 Co-authored-by: Parcly Taxel <reddeloostw@gmail.com>
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`Algebra.GroupPower.Lemmas` used to be a big bag of lemmas that made it there on the criterion that they needed "more imports". This was completely untrue, as all lemmas could be moved to earlier files in PRs: - #9440 - #9442 - #9443 - #9455 - #9456 - #9457 - #9459 - #9461 - #9463 - #9466 - #9501 - #9502 - #9503 - #9505 - #9551 - #9553 - #9720 - #9739 - #9740 - #9805 - #9806 - and this one There are several reasons for this: * Necessary lemmas have been moved to earlier files since lemmas were dumped in `Algebra.GroupPower.Lemmas` * In the Lean 3 → Lean 4 transition, Std acquired basic `Int` and `Nat` lemmas which let us shortcircuit the part of the algebraic order hierarchy on which the corresponding general lemmas rest * Some proofs were overpowered * Some earlier files were tangled and I have untangled them This PR finishes the job by moving the last few lemmas out of `Algebra.GroupPower.Lemmas`, which is therefore deleted.
mathlib-bors bot
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Jan 30, 2024
`Algebra.GroupPower.Lemmas` used to be a big bag of lemmas that made it there on the criterion that they needed "more imports". This was completely untrue, as all lemmas could be moved to earlier files in PRs: - #9440 - #9442 - #9443 - #9455 - #9456 - #9457 - #9459 - #9461 - #9463 - #9466 - #9501 - #9502 - #9503 - #9505 - #9551 - #9553 - #9720 - #9739 - #9740 - #9805 - #9806 - and this one There are several reasons for this: * Necessary lemmas have been moved to earlier files since lemmas were dumped in `Algebra.GroupPower.Lemmas` * In the Lean 3 → Lean 4 transition, Std acquired basic `Int` and `Nat` lemmas which let us shortcircuit the part of the algebraic order hierarchy on which the corresponding general lemmas rest * Some proofs were overpowered * Some earlier files were tangled and I have untangled them This PR finishes the job by moving the last few lemmas out of `Algebra.GroupPower.Lemmas`, which is therefore deleted.
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Split
Algebra.Order.LatticeGroupinto two files:Algebra.Order.Group.Latticefor general properties of lattice ordered groupsAlgebra.Order.Group.PosPartfor properties of the positive and negative partsNote that the latter also contains properties of the absolute value. These will be moved to
Algebra.Order.Group.Absin a later PR.Part of #9411