Are you a maintainer with just a short amount of time? The following kinds of pull requests could be relevant for you.
| Number |
Author |
Title |
Description |
Labels |
+/- |
Modified files (first 100) |
📝 |
💬 |
All users who commented or reviewed |
Assignee(s) |
Updated |
Last status change |
total time in review |
| 35753 |
Vilin97 author:Vilin97 |
feat(Topology/Algebra/Order): regular grid helpers and piecewise linear interpolation |
Make API for piecewise linear interpolation on regular grids. I need these to for ODE time-stepping methods, like forward Euler, and later Runge–Kutta methods.
Follow-up PR: #35755 (forward Euler method convergence).
I don't know if these numerical analysis ODE-solving methods even belong in mathlib. If someone could advise me on it, I would appreciate it.
---
The initial proof was produced by [Aristotle](https://aristotle.harmonic.fun). The code was iteratively refined (factoring out lemmas, golfing, simplifying proofs) using Claude Code.
- [ ] depends on: #38091 |
t-topology
new-contributor
LLM-generated
maintainer-merge
|
201/0 |
Mathlib.lean,Mathlib/Topology/Algebra/Order/PiecewiseLinear.lean |
2 |
59 |
['Vilin97', 'YanYablonovskiy', 'adomani', 'botbaki-review', 'copilot-pull-request-reviewer', 'dagurtomas', 'eric-wieser', 'github-actions', 'grunweg', 'j-loreaux', 'mathlib-dependent-issues', 'wwylele'] |
nobody |
39-11059 1 month ago |
72-21135 72 days ago |
104-60996 104 days |
| 34633 |
mitchell-horner author:mitchell-horner |
feat(Combinatorics/SimpleGraph): define the Zarankiewicz function |
Defines the Zarankiewicz function $z(m, n; s, t)$ in terms of bipartite graphs.
---
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- [x] depends on: #34632
This comes from splitting up #25841 into smaller PRs.
[](https://gitpod.io/from-referrer/)
|
t-combinatorics
maintainer-merge
|
164/0 |
Mathlib.lean,Mathlib/Combinatorics/SimpleGraph/Extremal/Zarankiewicz.lean,Mathlib/Combinatorics/SimpleGraph/Maps.lean |
3 |
30 |
['SnirBroshi', 'YaelDillies', 'b-mehta', 'github-actions', 'mathlib-dependent-issues', 'mathlib-merge-conflicts', 'mitchell-horner'] |
nobody |
9-52543 9 days ago |
9-52613 9 days ago |
108-21635 108 days |
| 33143 |
wwylele author:wwylele |
feat(PowerSeries): pentagonal number theorem |
The proof is split in two files: `Mathlib/Combinatorics/Enumerative/Ring.lean` for the algebraic part, and `Mathlib/Combinatorics/Enumerative/PowerSeries.lean` for the summability part. In the near future, I also plan to prove the real/complex version that branches off from the algebraic part.
---
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- [x] depends on: #30436
- [x] depends on: #38179
[](https://gitpod.io/from-referrer/)
|
t-combinatorics
file-removed
maintainer-merge
|
360/7 |
Mathlib.lean,Mathlib/Combinatorics/Enumerative/Pentagonal/Basic.lean,Mathlib/Combinatorics/Enumerative/Pentagonal/PowerSeries.lean,Mathlib/Combinatorics/Enumerative/Pentagonal/Ring.lean,Mathlib/RingTheory/Nilpotent/Basic.lean,docs/1000.yaml |
6 |
110 |
['YaelDillies', 'copilot-pull-request-reviewer', 'github-actions', 'jcommelin', 'mathlib-dependent-issues', 'tb65536', 'themathqueen', 'urkud', 'vihdzp', 'wwylele'] |
nobody |
9-42765 9 days ago |
9-43855 9 days ago |
172-58689 172 days |
| 40925 |
JovanGerb author:JovanGerb |
chore(CategoryTheory/Functor/Category): don't expose `NatTrans.hcomp` |
This PR hides the definition of `NatTrans.hcomp`, because it has two equally sensible possible definitions. As a result, we can get rid of the `to_dual_insert_cast`. `simps` doesn't work for non-exposed definition, so `hcomp_app` is proved separately, and its dual `hcomp_app'` is added.
Note: some proofs break, because the `dsimp` set changes, due to the definition not being exposed. This is a bit unfortunate. There was some discussion on Zulip about changing `dsimp` for category theory into a simp set, which would fix this problem, because we could then add `hcomp_app` to this set.
---
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|
maintainer-merge
tech debt
|
30/15 |
Mathlib/AlgebraicTopology/DoldKan/NCompGamma.lean,Mathlib/AlgebraicTopology/DoldKan/PInfty.lean,Mathlib/CategoryTheory/Functor/Category.lean,Mathlib/CategoryTheory/Monoidal/Action/End.lean,Mathlib/CategoryTheory/Monoidal/End.lean,Mathlib/CategoryTheory/Triangulated/TStructure/SpectralObject.lean,Mathlib/CategoryTheory/Types/Basic.lean |
7 |
11 |
['JovanGerb', 'github-actions', 'grunweg', 'leanprover-radar', 'riccardobrasca'] |
nobody |
8-55264 8 days ago |
8-55343 8 days ago |
19-48290 19 days |
| 35296 |
Rida-Hamadani author:Rida-Hamadani |
feat(SimpleGraph): taking or dropping from a cycle results in a path |
---
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- [x] depends on: #33249
- [x] depends on: #35295
- [x] depends on: #35292
[](https://gitpod.io/from-referrer/)
|
t-combinatorics
maintainer-merge
|
13/0 |
Mathlib/Combinatorics/SimpleGraph/Paths.lean |
1 |
4 |
['YaelDillies', 'github-actions', 'mathlib-dependent-issues', 'mathlib-merge-conflicts'] |
nobody |
4-75591 4 days ago |
5-20738 5 days ago |
5-20239 5 days |
| 38214 |
emlis42 author:emlis42 |
feat(Algebra/ContinuedFractions): add Euler's continued fraction |
This PR formalizes Euler continued fractions by providing `euler` which construct one by giving head term and coefficients with some basic property.
We also introduce a transformation `GenContFract.toEuler` that maps a generalized continued fraction `g : GenContFract K` to an equivalent Euler continued fraction. |
new-contributor
t-algebra
maintainer-merge
label:t-algebra$ |
364/0 |
Mathlib.lean,Mathlib/Algebra/ContinuedFractions/Euler.lean |
2 |
74 |
['YaelDillies', 'emlis42', 'github-actions', 'mathlib-bors', 'wwylele'] |
nobody |
4-63397 4 days ago |
5-39775 5 days ago |
67-84662 67 days |
| 40109 |
gasparattila author:gasparattila |
feat(Topology/Sets): separability of `(Nonempty)Compacts` |
---
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[](https://gitpod.io/from-referrer/)
|
t-topology
maintainer-merge
|
28/0 |
Mathlib/Topology/Sets/VietorisTopology.lean |
1 |
8 |
['CoolRmal', 'gasparattila', 'github-actions'] |
ADedecker, CoolRmal, PatrickMassot, j-loreaux assignee:j-loreaux assignee:PatrickMassot assignee:ADedecker assignee:CoolRmal |
3-39895 3 days ago |
3-56488 3 days ago |
41-54733 41 days |
| 41519 |
teorth author:teorth |
feat(Topology/EMetricSpace/BoundedVariation): more BoundedVariationOn and eVariationOn API |
Various API for `BoundedVariationOn` and `eVariationOn`, including a formula for the `eVariationOn` for finite sets such as pairs, or the variation of the identity function, or more generally a monotone function.
---
Note: to obtain the variation formula for finite sets, `Data.Finset.Sort` was added to the imports.
[](https://gitpod.io/from-referrer/)
|
t-topology
maintainer-merge
|
119/29 |
Mathlib/Topology/EMetricSpace/BoundedVariation.lean |
1 |
26 |
['CoolRmal', 'github-actions', 'teorth'] |
CoolRmal assignee:CoolRmal |
2-80121 2 days ago |
2-80642 2 days ago |
3-81289 3 days |
| 40593 |
grunweg author:grunweg |
chore(MathlibTest): fix defLemma warnings |
In all these cases, a dummy definition was declared of type True: the `defProp` linter complains that a declaration of type `True` should be a `lemma`. Instead, change to a definition with value (the natural 0).
---
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|
tech debt
maintainer-merge
|
5/7 |
MathlibTest/Linter/DocPrime.lean,MathlibTest/Tactic/Says/Basic.lean |
2 |
6 |
['adomani', 'github-actions', 'grunweg', 'joneugster', 'mathlib-merge-conflicts'] |
nobody |
2-62599 2 days ago |
9-57280 9 days ago |
21-30614 21 days |
| 41395 |
felixpernegger author:felixpernegger |
chore: remove redundant backward.privateInPublic exceptions |
Remove all `set_option backward.privateInPublic false` which are not needed, excluding MathlibTest
---
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[](https://gitpod.io/from-referrer/)
|
tech debt
maintainer-merge
|
0/63 |
Mathlib/Algebra/Category/AlgCat/Basic.lean,Mathlib/Algebra/Category/BoolRing.lean,Mathlib/Algebra/Category/CommAlgCat/Basic.lean,Mathlib/Algebra/Category/CommBialgCat.lean,Mathlib/Algebra/Category/Grp/Basic.lean,Mathlib/Algebra/Category/ModuleCat/Basic.lean,Mathlib/Algebra/Category/ModuleCat/Semi.lean,Mathlib/Algebra/Category/ModuleCat/Topology/Basic.lean,Mathlib/Algebra/Category/MonCat/Basic.lean,Mathlib/Algebra/Category/Ring/Basic.lean,Mathlib/Algebra/Category/Semigrp/Basic.lean,Mathlib/AlgebraicGeometry/IdealSheaf/Subscheme.lean,Mathlib/CategoryTheory/Bicategory/InducedBicategory.lean,Mathlib/CategoryTheory/Galois/Decomposition.lean,Mathlib/CategoryTheory/Galois/EssSurj.lean,Mathlib/CategoryTheory/Monoidal/Braided/Basic.lean,Mathlib/CategoryTheory/Monoidal/Internal/FunctorCategory.lean,Mathlib/Data/NNReal/Defs.lean,Mathlib/FieldTheory/CardinalEmb.lean,Mathlib/LinearAlgebra/PerfectPairing/Restrict.lean,Mathlib/Logic/Godel/GodelBetaFunction.lean,Mathlib/NumberTheory/ArithmeticFunction/Misc.lean,Mathlib/NumberTheory/LegendreSymbol/JacobiSymbol.lean,Mathlib/NumberTheory/NumberField/House.lean,Mathlib/Order/Category/BddDistLat.lean,Mathlib/Order/Category/BddLat.lean,Mathlib/Order/Category/BddOrd.lean,Mathlib/Order/Category/BoolAlg.lean,Mathlib/Order/Category/DistLat.lean,Mathlib/Order/Category/FinBddDistLat.lean,Mathlib/Order/Category/Frm.lean,Mathlib/Order/Category/HeytAlg.lean,Mathlib/Order/Category/Lat.lean,Mathlib/Order/Category/LinOrd.lean,Mathlib/Order/Category/PartOrd.lean,Mathlib/Order/Category/PartOrdEmb.lean,Mathlib/Order/Category/Preord.lean,Mathlib/Order/DirectedInverseSystem.lean,Mathlib/Order/Nucleus.lean,Mathlib/RepresentationTheory/Continuous/TopRep.lean,Mathlib/RepresentationTheory/Rep/Basic.lean,Mathlib/RingTheory/MvPowerSeries/Evaluation.lean |
42 |
14 |
['felixpernegger', 'github-actions', 'grunweg', 'joneugster', 'leanprover-radar', 'mathlib-bors', 'mathlib-dependent-issues', 'mathlib-splicebot'] |
nobody |
2-62455 2 days ago |
6-51091 6 days ago |
6-50592 6 days |
| 41332 |
JovanGerb author:JovanGerb |
chore: fix many `nsmul`/`zsmul` diamonds |
This PR fixes many diamonds around `nsmul`/`zsmul` fields. The common problematic pattern is that we first define the `AddCommMonoid`/`AddCommGroup` instance, and later define the `SMul` or `Algebra` instance. But we need to define the `smul` operation first, so that it can be used to define the `nsmul` and `zsmul` operations such that there is no diamond.
These fixes are all ported from #38781 (the instance diamonds linter), and they were found after we got the `NSMul` and `ZSMul` type classes (#38036).
---
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|
tech debt
maintainer-merge
|
160/131 |
Mathlib/Algebra/DirectSum/Basic.lean,Mathlib/Algebra/Homology/HomotopyCategory/HomComplex.lean,Mathlib/Analysis/Calculus/FormalMultilinearSeries.lean,Mathlib/Analysis/Normed/Lp/lpSpace.lean,Mathlib/Analysis/Normed/Ring/WithAbs.lean,Mathlib/LinearAlgebra/CliffordAlgebra/Basic.lean,Mathlib/LinearAlgebra/Quotient/Defs.lean,Mathlib/LinearAlgebra/TensorAlgebra/Basic.lean,Mathlib/NumberTheory/Cyclotomic/Basic.lean,Mathlib/RingTheory/Extension/Cotangent/Basic.lean,Mathlib/RingTheory/Ideal/Cotangent.lean,Mathlib/RingTheory/Kaehler/Basic.lean,Mathlib/Topology/Algebra/Module/Spaces/UniformConvergenceCLM.lean,Mathlib/Topology/Algebra/Module/Spaces/WeakBilin.lean,Mathlib/Topology/Algebra/Module/Spaces/WeakDual.lean,Mathlib/Topology/Algebra/UniformConvergence.lean,Mathlib/Topology/VectorBundle/Constructions.lean |
17 |
8 |
['JovanGerb', 'eric-wieser', 'github-actions', 'joneugster', 'mathlib-merge-conflicts'] |
eric-wieser and joneugster assignee:eric-wieser assignee:joneugster |
2-61695 2 days ago |
5-41483 5 days ago |
5-65123 5 days |
| 39307 |
FordUniver author:FordUniver |
feat(Combinatorics/SimpleGraph/Copy): introduce `UnlabeledCopy` carrier subtype |
Adds `abbrev UnlabeledCopy A B := {B' : B.Subgraph // Nonempty (A ≃g B'.coe)}` and uses it to replace the previous inline filter-set body of `copyCount G H`. Drops the now unused legacy Finset-image bridge `copyCount_eq_card_image_copyToSubgraph`. Adds `uniqueUnlabeledCopyBot` instance so `copyCount_bot` is a one-liner via `Fintype.card_unique`.
Co-authored-by: Malte Jackisch <45597826+MaltyBlanket@users.noreply.github.com>
---
**Step 1/5 of the `Copy` / `InducedCopy` refactor-feat stack.**
This PR isolates the `UnlabeledCopy` type introduction and the count's type-form redefinition from the larger rename/convention work in the rest of the stack. Note that resolving the current clash in naming (`Copy` and `UnlabeledCopy` vs `labelledCopyCount` and `copyCount`) is part of #38745.
|
t-combinatorics
maintainer-merge
|
40/26 |
Mathlib/Combinatorics/SimpleGraph/Copy.lean |
1 |
14 |
['FordUniver', 'SnirBroshi', 'YaelDillies', 'github-actions', 'mathlib-bors', 'mathlib-merge-conflicts', 'mitchell-horner'] |
nobody |
1-8211 1 day ago |
1-8283 1 day ago |
50-62821 50 days |
| Number |
Author |
Title |
Description |
Labels |
+/- |
Modified files (first 100) |
📝 |
💬 |
All users who commented or reviewed |
Assignee(s) |
Updated |
Last status change |
total time in review |
| 35753 |
Vilin97 author:Vilin97 |
feat(Topology/Algebra/Order): regular grid helpers and piecewise linear interpolation |
Make API for piecewise linear interpolation on regular grids. I need these to for ODE time-stepping methods, like forward Euler, and later Runge–Kutta methods.
Follow-up PR: #35755 (forward Euler method convergence).
I don't know if these numerical analysis ODE-solving methods even belong in mathlib. If someone could advise me on it, I would appreciate it.
---
The initial proof was produced by [Aristotle](https://aristotle.harmonic.fun). The code was iteratively refined (factoring out lemmas, golfing, simplifying proofs) using Claude Code.
- [ ] depends on: #38091 |
t-topology
new-contributor
LLM-generated
maintainer-merge
|
201/0 |
Mathlib.lean,Mathlib/Topology/Algebra/Order/PiecewiseLinear.lean |
2 |
59 |
['Vilin97', 'YanYablonovskiy', 'adomani', 'botbaki-review', 'copilot-pull-request-reviewer', 'dagurtomas', 'eric-wieser', 'github-actions', 'grunweg', 'j-loreaux', 'mathlib-dependent-issues', 'wwylele'] |
nobody |
39-11059 1 month ago |
72-21135 72 days ago |
104-60996 104 days |
| 34633 |
mitchell-horner author:mitchell-horner |
feat(Combinatorics/SimpleGraph): define the Zarankiewicz function |
Defines the Zarankiewicz function $z(m, n; s, t)$ in terms of bipartite graphs.
---
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This comes from splitting up #25841 into smaller PRs.
[](https://gitpod.io/from-referrer/)
|
t-combinatorics
maintainer-merge
|
164/0 |
Mathlib.lean,Mathlib/Combinatorics/SimpleGraph/Extremal/Zarankiewicz.lean,Mathlib/Combinatorics/SimpleGraph/Maps.lean |
3 |
30 |
['SnirBroshi', 'YaelDillies', 'b-mehta', 'github-actions', 'mathlib-dependent-issues', 'mathlib-merge-conflicts', 'mitchell-horner'] |
nobody |
9-52543 9 days ago |
9-52613 9 days ago |
108-21635 108 days |
| 33143 |
wwylele author:wwylele |
feat(PowerSeries): pentagonal number theorem |
The proof is split in two files: `Mathlib/Combinatorics/Enumerative/Ring.lean` for the algebraic part, and `Mathlib/Combinatorics/Enumerative/PowerSeries.lean` for the summability part. In the near future, I also plan to prove the real/complex version that branches off from the algebraic part.
---
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[](https://gitpod.io/from-referrer/)
|
t-combinatorics
file-removed
maintainer-merge
|
360/7 |
Mathlib.lean,Mathlib/Combinatorics/Enumerative/Pentagonal/Basic.lean,Mathlib/Combinatorics/Enumerative/Pentagonal/PowerSeries.lean,Mathlib/Combinatorics/Enumerative/Pentagonal/Ring.lean,Mathlib/RingTheory/Nilpotent/Basic.lean,docs/1000.yaml |
6 |
110 |
['YaelDillies', 'copilot-pull-request-reviewer', 'github-actions', 'jcommelin', 'mathlib-dependent-issues', 'tb65536', 'themathqueen', 'urkud', 'vihdzp', 'wwylele'] |
nobody |
9-42765 9 days ago |
9-43855 9 days ago |
172-58689 172 days |
| 40925 |
JovanGerb author:JovanGerb |
chore(CategoryTheory/Functor/Category): don't expose `NatTrans.hcomp` |
This PR hides the definition of `NatTrans.hcomp`, because it has two equally sensible possible definitions. As a result, we can get rid of the `to_dual_insert_cast`. `simps` doesn't work for non-exposed definition, so `hcomp_app` is proved separately, and its dual `hcomp_app'` is added.
Note: some proofs break, because the `dsimp` set changes, due to the definition not being exposed. This is a bit unfortunate. There was some discussion on Zulip about changing `dsimp` for category theory into a simp set, which would fix this problem, because we could then add `hcomp_app` to this set.
---
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|
maintainer-merge
tech debt
|
30/15 |
Mathlib/AlgebraicTopology/DoldKan/NCompGamma.lean,Mathlib/AlgebraicTopology/DoldKan/PInfty.lean,Mathlib/CategoryTheory/Functor/Category.lean,Mathlib/CategoryTheory/Monoidal/Action/End.lean,Mathlib/CategoryTheory/Monoidal/End.lean,Mathlib/CategoryTheory/Triangulated/TStructure/SpectralObject.lean,Mathlib/CategoryTheory/Types/Basic.lean |
7 |
11 |
['JovanGerb', 'github-actions', 'grunweg', 'leanprover-radar', 'riccardobrasca'] |
nobody |
8-55264 8 days ago |
8-55343 8 days ago |
19-48290 19 days |
| 35296 |
Rida-Hamadani author:Rida-Hamadani |
feat(SimpleGraph): taking or dropping from a cycle results in a path |
---
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- [x] depends on: #35295
- [x] depends on: #35292
[](https://gitpod.io/from-referrer/)
|
t-combinatorics
maintainer-merge
|
13/0 |
Mathlib/Combinatorics/SimpleGraph/Paths.lean |
1 |
4 |
['YaelDillies', 'github-actions', 'mathlib-dependent-issues', 'mathlib-merge-conflicts'] |
nobody |
4-75591 4 days ago |
5-20738 5 days ago |
5-20239 5 days |
| 38214 |
emlis42 author:emlis42 |
feat(Algebra/ContinuedFractions): add Euler's continued fraction |
This PR formalizes Euler continued fractions by providing `euler` which construct one by giving head term and coefficients with some basic property.
We also introduce a transformation `GenContFract.toEuler` that maps a generalized continued fraction `g : GenContFract K` to an equivalent Euler continued fraction. |
new-contributor
t-algebra
maintainer-merge
label:t-algebra$ |
364/0 |
Mathlib.lean,Mathlib/Algebra/ContinuedFractions/Euler.lean |
2 |
74 |
['YaelDillies', 'emlis42', 'github-actions', 'mathlib-bors', 'wwylele'] |
nobody |
4-63397 4 days ago |
5-39775 5 days ago |
67-84662 67 days |
| 40109 |
gasparattila author:gasparattila |
feat(Topology/Sets): separability of `(Nonempty)Compacts` |
---
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|
t-topology
maintainer-merge
|
28/0 |
Mathlib/Topology/Sets/VietorisTopology.lean |
1 |
8 |
['CoolRmal', 'gasparattila', 'github-actions'] |
ADedecker, CoolRmal, PatrickMassot, j-loreaux assignee:j-loreaux assignee:PatrickMassot assignee:ADedecker assignee:CoolRmal |
3-39895 3 days ago |
3-56488 3 days ago |
41-54733 41 days |
| 41519 |
teorth author:teorth |
feat(Topology/EMetricSpace/BoundedVariation): more BoundedVariationOn and eVariationOn API |
Various API for `BoundedVariationOn` and `eVariationOn`, including a formula for the `eVariationOn` for finite sets such as pairs, or the variation of the identity function, or more generally a monotone function.
---
Note: to obtain the variation formula for finite sets, `Data.Finset.Sort` was added to the imports.
[](https://gitpod.io/from-referrer/)
|
t-topology
maintainer-merge
|
119/29 |
Mathlib/Topology/EMetricSpace/BoundedVariation.lean |
1 |
26 |
['CoolRmal', 'github-actions', 'teorth'] |
CoolRmal assignee:CoolRmal |
2-80121 2 days ago |
2-80642 2 days ago |
3-81289 3 days |
| 40593 |
grunweg author:grunweg |
chore(MathlibTest): fix defLemma warnings |
In all these cases, a dummy definition was declared of type True: the `defProp` linter complains that a declaration of type `True` should be a `lemma`. Instead, change to a definition with value (the natural 0).
---
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|
tech debt
maintainer-merge
|
5/7 |
MathlibTest/Linter/DocPrime.lean,MathlibTest/Tactic/Says/Basic.lean |
2 |
6 |
['adomani', 'github-actions', 'grunweg', 'joneugster', 'mathlib-merge-conflicts'] |
nobody |
2-62599 2 days ago |
9-57280 9 days ago |
21-30614 21 days |
| 41395 |
felixpernegger author:felixpernegger |
chore: remove redundant backward.privateInPublic exceptions |
Remove all `set_option backward.privateInPublic false` which are not needed, excluding MathlibTest
---
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|
tech debt
maintainer-merge
|
0/63 |
Mathlib/Algebra/Category/AlgCat/Basic.lean,Mathlib/Algebra/Category/BoolRing.lean,Mathlib/Algebra/Category/CommAlgCat/Basic.lean,Mathlib/Algebra/Category/CommBialgCat.lean,Mathlib/Algebra/Category/Grp/Basic.lean,Mathlib/Algebra/Category/ModuleCat/Basic.lean,Mathlib/Algebra/Category/ModuleCat/Semi.lean,Mathlib/Algebra/Category/ModuleCat/Topology/Basic.lean,Mathlib/Algebra/Category/MonCat/Basic.lean,Mathlib/Algebra/Category/Ring/Basic.lean,Mathlib/Algebra/Category/Semigrp/Basic.lean,Mathlib/AlgebraicGeometry/IdealSheaf/Subscheme.lean,Mathlib/CategoryTheory/Bicategory/InducedBicategory.lean,Mathlib/CategoryTheory/Galois/Decomposition.lean,Mathlib/CategoryTheory/Galois/EssSurj.lean,Mathlib/CategoryTheory/Monoidal/Braided/Basic.lean,Mathlib/CategoryTheory/Monoidal/Internal/FunctorCategory.lean,Mathlib/Data/NNReal/Defs.lean,Mathlib/FieldTheory/CardinalEmb.lean,Mathlib/LinearAlgebra/PerfectPairing/Restrict.lean,Mathlib/Logic/Godel/GodelBetaFunction.lean,Mathlib/NumberTheory/ArithmeticFunction/Misc.lean,Mathlib/NumberTheory/LegendreSymbol/JacobiSymbol.lean,Mathlib/NumberTheory/NumberField/House.lean,Mathlib/Order/Category/BddDistLat.lean,Mathlib/Order/Category/BddLat.lean,Mathlib/Order/Category/BddOrd.lean,Mathlib/Order/Category/BoolAlg.lean,Mathlib/Order/Category/DistLat.lean,Mathlib/Order/Category/FinBddDistLat.lean,Mathlib/Order/Category/Frm.lean,Mathlib/Order/Category/HeytAlg.lean,Mathlib/Order/Category/Lat.lean,Mathlib/Order/Category/LinOrd.lean,Mathlib/Order/Category/PartOrd.lean,Mathlib/Order/Category/PartOrdEmb.lean,Mathlib/Order/Category/Preord.lean,Mathlib/Order/DirectedInverseSystem.lean,Mathlib/Order/Nucleus.lean,Mathlib/RepresentationTheory/Continuous/TopRep.lean,Mathlib/RepresentationTheory/Rep/Basic.lean,Mathlib/RingTheory/MvPowerSeries/Evaluation.lean |
42 |
14 |
['felixpernegger', 'github-actions', 'grunweg', 'joneugster', 'leanprover-radar', 'mathlib-bors', 'mathlib-dependent-issues', 'mathlib-splicebot'] |
nobody |
2-62455 2 days ago |
6-51091 6 days ago |
6-50592 6 days |
| 41332 |
JovanGerb author:JovanGerb |
chore: fix many `nsmul`/`zsmul` diamonds |
This PR fixes many diamonds around `nsmul`/`zsmul` fields. The common problematic pattern is that we first define the `AddCommMonoid`/`AddCommGroup` instance, and later define the `SMul` or `Algebra` instance. But we need to define the `smul` operation first, so that it can be used to define the `nsmul` and `zsmul` operations such that there is no diamond.
These fixes are all ported from #38781 (the instance diamonds linter), and they were found after we got the `NSMul` and `ZSMul` type classes (#38036).
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tech debt
maintainer-merge
|
160/131 |
Mathlib/Algebra/DirectSum/Basic.lean,Mathlib/Algebra/Homology/HomotopyCategory/HomComplex.lean,Mathlib/Analysis/Calculus/FormalMultilinearSeries.lean,Mathlib/Analysis/Normed/Lp/lpSpace.lean,Mathlib/Analysis/Normed/Ring/WithAbs.lean,Mathlib/LinearAlgebra/CliffordAlgebra/Basic.lean,Mathlib/LinearAlgebra/Quotient/Defs.lean,Mathlib/LinearAlgebra/TensorAlgebra/Basic.lean,Mathlib/NumberTheory/Cyclotomic/Basic.lean,Mathlib/RingTheory/Extension/Cotangent/Basic.lean,Mathlib/RingTheory/Ideal/Cotangent.lean,Mathlib/RingTheory/Kaehler/Basic.lean,Mathlib/Topology/Algebra/Module/Spaces/UniformConvergenceCLM.lean,Mathlib/Topology/Algebra/Module/Spaces/WeakBilin.lean,Mathlib/Topology/Algebra/Module/Spaces/WeakDual.lean,Mathlib/Topology/Algebra/UniformConvergence.lean,Mathlib/Topology/VectorBundle/Constructions.lean |
17 |
8 |
['JovanGerb', 'eric-wieser', 'github-actions', 'joneugster', 'mathlib-merge-conflicts'] |
eric-wieser and joneugster assignee:eric-wieser assignee:joneugster |
2-61695 2 days ago |
5-41483 5 days ago |
5-65123 5 days |
| 39307 |
FordUniver author:FordUniver |
feat(Combinatorics/SimpleGraph/Copy): introduce `UnlabeledCopy` carrier subtype |
Adds `abbrev UnlabeledCopy A B := {B' : B.Subgraph // Nonempty (A ≃g B'.coe)}` and uses it to replace the previous inline filter-set body of `copyCount G H`. Drops the now unused legacy Finset-image bridge `copyCount_eq_card_image_copyToSubgraph`. Adds `uniqueUnlabeledCopyBot` instance so `copyCount_bot` is a one-liner via `Fintype.card_unique`.
Co-authored-by: Malte Jackisch <45597826+MaltyBlanket@users.noreply.github.com>
---
**Step 1/5 of the `Copy` / `InducedCopy` refactor-feat stack.**
This PR isolates the `UnlabeledCopy` type introduction and the count's type-form redefinition from the larger rename/convention work in the rest of the stack. Note that resolving the current clash in naming (`Copy` and `UnlabeledCopy` vs `labelledCopyCount` and `copyCount`) is part of #38745.
|
t-combinatorics
maintainer-merge
|
40/26 |
Mathlib/Combinatorics/SimpleGraph/Copy.lean |
1 |
14 |
['FordUniver', 'SnirBroshi', 'YaelDillies', 'github-actions', 'mathlib-bors', 'mathlib-merge-conflicts', 'mitchell-horner'] |
nobody |
1-8211 1 day ago |
1-8283 1 day ago |
50-62821 50 days |
| 39607 |
TentativeConvert author:TentativeConvert |
feat(Algebra/DirectSum): equivalence between direct sum indexed by ι₁ and double sum indexed by ι₂ and fibres of f : ι₁ → ι₂ |
1. Add variant `equivCongrLeft'` of `equivCongrLeft`, and corresponding `…_apply` lemma.
2. Add `…_of lemmas` for both `equivCongrLeft` and `equivCongrLeft'`.
3. Add `…of lemma` for `sigmaCurry`, i.e. `sigmaCurry_of`.
4. Add `sigmaFiberAddEquiv`: the equivalence between a direct sum indexed by a type `ι₁` and the double sum indexed by a type `ι₂` and the fibres of a map `f : ι₁ → ι₂`. Add two `…_apply` lemmas and an `…_of` lemma.
---
This is supposed to be a first step towards merging the draft PR #39356.
re 1: Mathematically, I don't see why one version should be preferred over the other, but I found the existing `equivCongrLeft` more difficult to work with when the equivalence `h : ι ≃ κ` is naturally given in the opposite direction. (I could not avoid explicit type casts through the equality `h.symm.symm = h` when defining `sigmaFiberAddEquiv` in terms of `equivCongrLeft`.)
Very unsure about the name of `equivCongrLeft'`. (I see that the name `equivCongrLeft` was chosen in analogy with `Equiv.piCongrLeft`. `Equiv.piCongrRight` looks very different, so presumably `equivCongrLeft'` should *not* be called `equivCongrRight`.)
re 4: Very unsure about the naming of the two different `…_apply` lemmas; called them `…_apply` and `…_apply'` for now. The second (`…_apply'`) cannot be a `simp` lemma as it would prevent the first (`…_apply`) from firing.
I've used Claude Opus for understanding error messages and git interaction, but everything is hand coded.
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t-algebra
new-contributor
maintainer-merge
label:t-algebra$ |
46/3 |
Mathlib/Algebra/DirectSum/Basic.lean |
1 |
48 |
['TentativeConvert', 'eric-wieser', 'github-actions', 'joneugster', 'themathqueen'] |
joneugster assignee:joneugster |
0-65205 18 hours ago |
13-50311 13 days ago |
52-42419 52 days |
| 41620 |
JovanGerb author:JovanGerb |
fix(GRewrite): preserve binder names in a forall |
This PR is a follow-up to #40323, and ensures that `grw` preserves binder names and binder info in universal quantifiers.
This special-case support is needed because foralls are not represented with a lambda, like all other binders.
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t-meta
maintainer-merge
|
15/1 |
Mathlib/Tactic/GRewrite/Core.lean,MathlibTest/Tactic/GRewrite.lean |
2 |
2 |
['github-actions', 'joneugster'] |
joneugster assignee:joneugster |
0-63440 17 hours ago |
1-44903 1 day ago |
1-44404 1 day |
| 40249 |
vasnesterov author:vasnesterov |
feat(Tactic/ComputeAsymptotics/Multiseries): corecursion for multiseries |
Translate API for general corecursion for `Seq` to `Multiseries`.
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This is a part of the `compute_asymptotics` tactic (#28291).
- [x] depends on: #40255
[](https://gitpod.io/from-referrer/) |
t-meta
large-import
maintainer-merge
|
185/0 |
Mathlib/Tactic/ComputeAsymptotics/Multiseries/Defs.lean |
1 |
3 |
['github-actions', 'joneugster', 'mathlib-dependent-issues'] |
joneugster assignee:joneugster |
0-60303 16 hours ago |
32-69111 32 days ago |
33-25457 33 days |
| 29145 |
JovanGerb author:JovanGerb |
chore: use `to_additive` in more places |
This PR addresses some comments about `to_additive` not working, by making it work more.
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t-meta
maintainer-merge
|
9/43 |
Mathlib/Combinatorics/Additive/DoublingConst.lean,Mathlib/Topology/Algebra/InfiniteSum/Module.lean |
2 |
8 |
['JovanGerb', 'github-actions', 'joneugster', 'mathlib-merge-conflicts'] |
joneugster assignee:joneugster |
0-59406 16 hours ago |
3-33949 3 days ago |
3-33450 3 days |
| 41594 |
plp127 author:plp127 |
fix(Tactic/DepRewrite): `rw!` produces type incorrect terms |
Fix bug where `rw!` can produce type-incorrect terms when the motive is dependent but the rewritten term is definitionally equal to the original term. See [Zulip](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/conv-mode.20rw.21.20can.20produce.20type-incorrect.20term/near/609501125).
---
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t-meta
maintainer-merge
|
71/13 |
Mathlib/Tactic/DepRewrite.lean,MathlibTest/depRewrite.lean |
2 |
2 |
['github-actions', 'joneugster'] |
joneugster assignee:joneugster |
0-59262 16 hours ago |
2-34899 2 days ago |
2-34400 2 days |
| 40338 |
JovanGerb author:JovanGerb |
feat(GRewrite): support universe changing rewrites |
This PR allows `grw` to deal with relations that are heterogenous (the two sides don't have the same type).
I'm slightly surprised that this works :). I added a basic test showing that the polymorphic relations on cardinals can be used in `grw`, as proposed in https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/Universe-heterogeneous.20ordinal.20and.20cardinal.20relations/with/495593531
---
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t-meta
maintainer-merge
|
56/5 |
Mathlib/Tactic/GRewrite/Core.lean,MathlibTest/Tactic/GRewrite.lean |
2 |
19 |
['JovanGerb', 'eric-wieser', 'github-actions', 'joneugster', 'mathlib-merge-conflicts'] |
eric-wieser and joneugster assignee:eric-wieser assignee:joneugster |
0-58787 16 hours ago |
10-4716 10 days ago |
35-21376 35 days |
| 39436 |
dtumad author:dtumad |
chore: Add `seqLeft` and `seqRight` unfolding to monad_norm simp set |
This PR adds `seqLeft_eq_bind` and `seqRight_eq_bind` to `monad_norm`, so that `<*` and `*>` get unfolded in the same way as `<*>` already does when using the `simp` set.
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[](https://gitpod.io/from-referrer/)
|
t-meta
new-contributor
easy
maintainer-merge
|
1/1 |
Mathlib/Tactic/Attr/Core.lean |
1 |
3 |
['github-actions', 'joneugster'] |
kim-em assignee:kim-em |
0-45884 12 hours ago |
27-9660 27 days ago |
58-13601 58 days |
| 41178 |
Parcly-Taxel author:Parcly-Taxel |
chore: delete deprecated declarations to the end of 2025 |
The automated commits were made by running
```
#clear_deprecations "2025-11-01" "2025-12-31" really
```
(I had to do this in multiple sessions because VS Code kept running out of memory.) |
tech debt
maintainer-merge
|
0/2780 |
Mathlib.lean,Mathlib/Algebra/Algebra/Basic.lean,Mathlib/Algebra/Algebra/Bilinear.lean,Mathlib/Algebra/Algebra/Defs.lean,Mathlib/Algebra/Algebra/Equiv.lean,Mathlib/Algebra/BigOperators/Finsupp/Basic.lean,Mathlib/Algebra/Category/FGModuleCat/Basic.lean,Mathlib/Algebra/Category/Ring/FinitePresentation.lean,Mathlib/Algebra/DirectSum/Module.lean,Mathlib/Algebra/Group/Action/Pointwise/Set/Basic.lean,Mathlib/Algebra/Group/Hom/Defs.lean,Mathlib/Algebra/Group/Indicator.lean,Mathlib/Algebra/Group/Irreducible/Indecomposable.lean,Mathlib/Algebra/Group/Units/Defs.lean,Mathlib/Algebra/Module/LinearMap/Defs.lean,Mathlib/Algebra/Module/Submodule/Ker.lean,Mathlib/Algebra/Module/Submodule/LinearMap.lean,Mathlib/Algebra/MvPolynomial/Equiv.lean,Mathlib/Algebra/Order/AddGroupWithTop.lean,Mathlib/Algebra/Order/Archimedean/Class.lean,Mathlib/Algebra/Order/Field/Defs.lean,Mathlib/Algebra/Order/Floor/Ring.lean,Mathlib/Algebra/Order/GroupWithZero/Canonical.lean,Mathlib/Algebra/Order/IsBotOne.lean,Mathlib/Algebra/Order/Module/Archimedean.lean,Mathlib/Algebra/Order/Monoid/Unbundled/Basic.lean,Mathlib/Algebra/Order/Monoid/Unbundled/TypeTags.lean,Mathlib/Algebra/Order/Ring/StandardPart.lean,Mathlib/Algebra/Polynomial/Bivariate.lean,Mathlib/Algebra/Polynomial/Derivative.lean,Mathlib/Algebra/Polynomial/Expand.lean,Mathlib/Algebra/Polynomial/Roots.lean,Mathlib/Algebra/Polynomial/Splits.lean,Mathlib/Algebra/QuadraticAlgebra/Basic.lean,Mathlib/Algebra/QuadraticAlgebra/Defs.lean,Mathlib/Algebra/Quotient.lean,Mathlib/Algebra/Ring/Equiv.lean,Mathlib/Algebra/Star/LinearMap.lean,Mathlib/AlgebraicTopology/SimplexCategory/GeneratorsRelations/NormalForms.lean,Mathlib/Analysis/Analytic/Binomial.lean,Mathlib/Analysis/Analytic/OfScalars.lean,Mathlib/Analysis/CStarAlgebra/Unitary/Connected.lean,Mathlib/Analysis/Calculus/BumpFunction/FiniteDimension.lean,Mathlib/Analysis/Calculus/Deriv/Basic.lean,Mathlib/Analysis/Calculus/Deriv/Mul.lean,Mathlib/Analysis/Complex/Basic.lean,Mathlib/Analysis/Complex/ValueDistribution/CharacteristicFunction.lean,Mathlib/Analysis/Complex/ValueDistribution/LogCounting/Basic.lean,Mathlib/Analysis/Complex/ValueDistribution/Proximity/Basic.lean,Mathlib/Analysis/Distribution/AEEqOfIntegralContDiff.lean,Mathlib/Analysis/Distribution/SchwartzSpace/Deriv.lean,Mathlib/Analysis/Distribution/SchwartzSpace/Fourier.lean,Mathlib/Analysis/Distribution/TemperedDistribution.lean,Mathlib/Analysis/Distribution/TestFunction.lean,Mathlib/Analysis/Fourier/FourierTransform.lean,Mathlib/Analysis/Fourier/FourierTransformDeriv.lean,Mathlib/Analysis/Fourier/Inversion.lean,Mathlib/Analysis/Fourier/LpSpace.lean,Mathlib/Analysis/Fourier/PoissonSummation.lean,Mathlib/Analysis/Fourier/RiemannLebesgueLemma.lean,Mathlib/Analysis/InnerProductSpace/Adjoint.lean,Mathlib/Analysis/InnerProductSpace/Basic.lean,Mathlib/Analysis/InnerProductSpace/Laplacian.lean,Mathlib/Analysis/InnerProductSpace/Orthogonal.lean,Mathlib/Analysis/InnerProductSpace/PiL2.lean,Mathlib/Analysis/InnerProductSpace/Projection/Submodule.lean,Mathlib/Analysis/InnerProductSpace/Symmetric.lean,Mathlib/Analysis/Matrix/Order.lean,Mathlib/Analysis/MellinInversion.lean,Mathlib/Analysis/Meromorphic/Basic.lean,Mathlib/Analysis/Normed/Field/Lemmas.lean,Mathlib/Analysis/Normed/Field/WithAbs.lean,Mathlib/Analysis/Normed/Group/Continuity.lean,Mathlib/Analysis/Normed/Lp/ProdLp.lean,Mathlib/Analysis/Normed/Operator/LinearIsometry.lean,Mathlib/Analysis/Polynomial/MahlerMeasure.lean,Mathlib/Analysis/SpecialFunctions/Gaussian/FourierTransform.lean,Mathlib/CategoryTheory/Abelian/Basic.lean,Mathlib/CategoryTheory/Abelian/SerreClass/Bousfield.lean,Mathlib/CategoryTheory/EffectiveEpi/Basic.lean,Mathlib/CategoryTheory/Functor/KanExtension/DenseAt.lean,Mathlib/CategoryTheory/Groupoid.lean,Mathlib/CategoryTheory/Limits/ExactFunctor.lean,Mathlib/CategoryTheory/Limits/Shapes/Multiequalizer.lean,Mathlib/CategoryTheory/Limits/Shapes/RegularMono.lean,Mathlib/CategoryTheory/Localization/Bousfield.lean,Mathlib/CategoryTheory/Localization/DerivabilityStructure/PointwiseRightDerived.lean,Mathlib/CategoryTheory/Localization/Opposite.lean,Mathlib/CategoryTheory/Monoidal/Braided/Basic.lean,Mathlib/CategoryTheory/Monoidal/Cartesian/Grp.lean,Mathlib/CategoryTheory/Monoidal/Closed/Cartesian.lean,Mathlib/CategoryTheory/Monoidal/CommGrp_.lean,Mathlib/CategoryTheory/Monoidal/FunctorCategory.lean,Mathlib/CategoryTheory/Monoidal/Grp.lean,Mathlib/CategoryTheory/Monoidal/OfHasFiniteProducts.lean,Mathlib/CategoryTheory/Monoidal/Subcategory.lean,Mathlib/CategoryTheory/ObjectProperty/FullSubcategory.lean,Mathlib/CategoryTheory/Preadditive/AdditiveFunctor.lean,Mathlib/CategoryTheory/Presentable/OrthogonalReflection.lean,Mathlib/CategoryTheory/Quotient.lean |
257 |
15 |
['Parcly-Taxel', 'felixpernegger', 'github-actions', 'joneugster', 'mathlib-merge-conflicts'] |
joneugster assignee:joneugster |
0-5153 1 hour ago |
0-5240 1 hour ago |
11-63824 11 days |
| Number |
Author |
Title |
Description |
Labels |
+/- |
Modified files (first 100) |
📝 |
💬 |
All users who commented or reviewed |
Assignee(s) |
Updated |
Last status change |
total time in review |
| 17623 |
astrainfinita author:astrainfinita |
feat(Algebra/Order/GroupWithZero/Unbundled): add some lemmas |
Some lemmas in `Algebra.Order.GroupWithZero.Unbundled` have incorrect or unsatisfactory names, or assumptions that can be omitted using `ZeroLEOneClass`. The lemmas added in this PR are versions of existing lemmas that use the correct or better name or `ZeroLEOneClass` to omit an assumption. The original lemmas will be deprecated in #17593.
| New name | Old name |
|-------------------------|-------------------------|
| `mul_le_one_left₀` | `Left.mul_le_one_of_le_of_le` |
| `mul_lt_one_of_le_of_lt_left₀` (`0 ≤ ·` version) / `mul_lt_one_of_le_of_lt_of_pos_left` | `Left.mul_lt_of_le_of_lt_one_of_pos` |
| `mul_lt_one_of_lt_of_le_left₀` | `Left.mul_lt_of_lt_of_le_one_of_nonneg` |
| `mul_le_one_right₀` | `Right.mul_le_one_of_le_of_le` |
| `mul_lt_one_of_lt_of_le_right₀` (`0 ≤ ·` version) / `mul_lt_one_of_lt_of_le_of_pos_right` | `Right.mul_lt_one_of_lt_of_le_of_pos` |
| `mul_lt_one_of_le_of_lt_right₀` | `Right.mul_lt_one_of_le_of_lt_of_nonneg` |
The following lemmas use `ZeroLEOneClass`.
| New name | Old name |
|-------------------------|-------------------------|
| `(Left.)one_le_mul₀` | `Left.one_le_mul_of_le_of_le` |
| `Left.one_lt_mul_of_le_of_lt₀` | `Left.one_lt_mul_of_le_of_lt_of_pos` |
| `Left.one_lt_mul_of_lt_of_le₀` | `Left.lt_mul_of_lt_of_one_le_of_nonneg` / `one_lt_mul_of_lt_of_le` (still there) |
| `(Left.)one_lt_mul₀` | |
| `Right.one_le_mul₀` | `Right.one_le_mul_of_le_of_le` |
| `Right.one_lt_mul_of_lt_of_le₀` | `Right.one_lt_mul_of_lt_of_le_of_pos` |
| `Right.one_lt_mul_of_le_of_lt₀` | `Right.one_lt_mul_of_le_of_lt_of_nonneg` / `one_lt_mul_of_le_of_lt` (still there) / `one_lt_mul` (still there) |
| `Right.one_lt_mul₀` | `Right.one_lt_mul_of_lt_of_lt` |
---
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Split from #17593.
[](https://gitpod.io/from-referrer/)
|
merge-conflict
t-algebra
awaiting-zulip
t-order
label:t-algebra$ |
146/44 |
Mathlib/Algebra/Order/GroupWithZero/Canonical.lean,Mathlib/Algebra/Order/GroupWithZero/Unbundled.lean |
2 |
11 |
['YaelDillies', 'astrainfinita', 'github-actions', 'j-loreaux'] |
nobody |
599-56843 1 year ago |
unknown |
unknown |
| 15654 |
TpmKranz author:TpmKranz |
feat(Computability): language-preserving maps between NFA and RE |
Map REs to NFAs via Thompson's construction and NFAs to REs using GNFAs
Last chunk of #12648
---
<!-- The text above the `---` will become the commit message when your
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- [ ] depends on: #15651
- [ ] depends on: #15649
[](https://gitpod.io/from-referrer/)
|
blocked-by-other-PR
new-contributor
t-computability
merge-conflict
awaiting-zulip
|
985/2 |
Mathlib.lean,Mathlib/Computability/GNFA.lean,Mathlib/Computability/Language.lean,Mathlib/Computability/NFA.lean,Mathlib/Computability/RegularExpressions.lean,Mathlib/Data/FinEnum/Option.lean,docs/references.bib |
7 |
3 |
['github-actions', 'meithecatte'] |
nobody |
433-20120 1 year ago |
unknown |
unknown |
| 17458 |
urkud author:urkud |
refactor(Algebra/Group): make `IsUnit` a typeclass |
Also change some lemmas to assume `[IsUnit _]` instead of `[Invertible _]`.
Motivated by potential non-defeq diamonds in #14986, see also [Zulip](https://leanprover.zulipchat.com/#narrow/stream/116395-maths/topic/Invertible.20and.20data)
I no longer plan to merge this PR, but I'm going to cherry-pick some changes to a new PR before closing this one.
---
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PR is merged. Please leave a blank newline before the `---`, otherwise
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[](https://gitpod.io/from-referrer/)
|
merge-conflict
t-algebra
awaiting-zulip
label:t-algebra$ |
82/72 |
Mathlib/Algebra/CharP/Invertible.lean,Mathlib/Algebra/Group/Invertible/Basic.lean,Mathlib/Algebra/Group/Units/Defs.lean,Mathlib/Algebra/GroupWithZero/Invertible.lean,Mathlib/Algebra/GroupWithZero/Units/Basic.lean,Mathlib/Algebra/Polynomial/Degree/Units.lean,Mathlib/Algebra/Polynomial/Splits.lean,Mathlib/Analysis/Convex/Segment.lean,Mathlib/Analysis/Normed/Affine/Isometry.lean,Mathlib/Analysis/Normed/Ring/Units.lean,Mathlib/CategoryTheory/Linear/Basic.lean,Mathlib/FieldTheory/Finite/Basic.lean,Mathlib/FieldTheory/Separable.lean,Mathlib/FieldTheory/SeparableDegree.lean,Mathlib/GroupTheory/Submonoid/Inverses.lean,Mathlib/LinearAlgebra/AffineSpace/AffineEquiv.lean,Mathlib/LinearAlgebra/AffineSpace/Combination.lean,Mathlib/LinearAlgebra/CliffordAlgebra/Contraction.lean,Mathlib/LinearAlgebra/CliffordAlgebra/Inversion.lean,Mathlib/LinearAlgebra/CliffordAlgebra/SpinGroup.lean,Mathlib/LinearAlgebra/Eigenspace/Minpoly.lean,Mathlib/NumberTheory/MulChar/Basic.lean,Mathlib/RingTheory/Localization/NumDen.lean,Mathlib/RingTheory/Polynomial/Content.lean,Mathlib/RingTheory/Polynomial/GaussLemma.lean,Mathlib/RingTheory/Valuation/Basic.lean |
26 |
12 |
['MichaelStollBayreuth', 'acmepjz', 'eric-wieser', 'github-actions', 'leanprover-bot', 'leanprover-community-bot-assistant', 'urkud'] |
nobody |
373-469 1 year ago |
unknown |
unknown |
| 25218 |
kckennylau author:kckennylau |
feat(AlgebraicGeometry): Tate normal form of elliptic curves |
---
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[](https://gitpod.io/from-referrer/)
|
merge-conflict
t-algebraic-geometry
awaiting-zulip
new-contributor
|
291/26 |
Mathlib.lean,Mathlib/AlgebraicGeometry/EllipticCurve/IsomOfJ.lean,Mathlib/AlgebraicGeometry/EllipticCurve/Modular/TateNormalForm.lean,Mathlib/AlgebraicGeometry/EllipticCurve/NormalForms.lean,Mathlib/AlgebraicGeometry/EllipticCurve/VariableChange.lean |
5 |
31 |
['MichaelStollBayreuth', 'Multramate', 'acmepjz', 'github-actions', 'grunweg', 'kckennylau', 'leanprover-community-bot-assistant'] |
nobody |
372-85707 1 year ago |
unknown |
unknown |
| 28803 |
astrainfinita author:astrainfinita |
refactor: unbundle algebra from `ENormed*` |
Further speed up the search in the algebraic typeclass hierarchy by avoiding searching for `TopologicalSpace`.
This PR continues the work from #23961.
- Change `ESeminormed(Add)Monoid` and `ENormed(Add)Monoid` so they no longer carry algebraic data.
- Deprecate `ESeminormed(Add)CommMonoid` and `ENormed(Add)CommMonoid` in favor of `ESeminormed(Add)Monoid` and `ENormed(Add)Monoid` with a commutative algebraic typeclass.
|Old|New|
|---|---|
| `[ESeminormed(Add)(Comm)Monoid E]` | `[(Add)(Comm)Monoid E] [ESeminormed(Add)Monoid E]` |
| `[ENormed(Add)(Comm)Monoid]` | `[(Add)(Comm)Monoid E] [ENormed(Add)Monoid]` |
See [Zulip discussion](https://leanprover.zulipchat.com/#narrow/channel/144837-PR-reviews/topic/.2328803.20refactor.3A.20unbundle.20algebra.20from.20.60ENormed*.60/with/536024350)
------------
- [x] depends on: #28813 |
t-algebra
merge-conflict
slow-typeclass-synthesis
awaiting-zulip
t-analysis
label:t-algebra$ |
80/63 |
Mathlib/Analysis/CStarAlgebra/CStarMatrix.lean,Mathlib/Analysis/Normed/Group/Basic.lean,Mathlib/Analysis/Normed/Group/Continuity.lean,Mathlib/Analysis/Normed/Group/InfiniteSum.lean,Mathlib/Analysis/NormedSpace/IndicatorFunction.lean,Mathlib/MeasureTheory/Function/L1Space/AEEqFun.lean,Mathlib/MeasureTheory/Function/L1Space/HasFiniteIntegral.lean,Mathlib/MeasureTheory/Function/L1Space/Integrable.lean,Mathlib/MeasureTheory/Function/LocallyIntegrable.lean,Mathlib/MeasureTheory/Function/LpSeminorm/Basic.lean,Mathlib/MeasureTheory/Function/LpSeminorm/CompareExp.lean,Mathlib/MeasureTheory/Function/LpSeminorm/TriangleInequality.lean,Mathlib/MeasureTheory/Integral/IntegrableOn.lean,Mathlib/MeasureTheory/Integral/IntervalIntegral/Basic.lean |
14 |
28 |
['astrainfinita', 'bryangingechen', 'github-actions', 'grunweg', 'kbuzzard', 'leanprover-bot', 'mathlib-bors', 'mathlib4-dependent-issues-bot', 'mathlib4-merge-conflict-bot', 'sgouezel'] |
grunweg assignee:grunweg |
313-14952 10 months ago |
321-52506 321 days ago |
0-16864 4 hours |
| 28925 |
grunweg author:grunweg |
chore: remove `linear_combination'` tactic |
When `linear_combination` was refactored in #15899, the old code was kept as the `linear_combination'` tactic, for easier migration. The consensus of the zulip discussion ([#mathlib4 > Narrowing the scope of `linear_combination` @ 💬](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/Narrowing.20the.20scope.20of.20.60linear_combination.60/near/470237816)) was to wait, and "revisit this once people have experienced the various tactics in practice".
One year later, the old tactic has almost no uses: it is unused in mathlib; [searching on github](https://github.com/search?q=linear_combination%27%20path%3A*.lean&type=code) yields 37 hits --- all of which are in various forks of mathlib. Thus, removing this tactic seems appropriate.
---
Do not merge before the zulip discussion has concluded!
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[](https://gitpod.io/from-referrer/)
|
merge-conflict
file-removed
awaiting-zulip
|
0/564 |
Mathlib.lean,Mathlib/Tactic.lean,Mathlib/Tactic/LinearCombination'.lean,Mathlib/Tactic/Linter/UnusedTactic.lean,MathlibTest/linear_combination'.lean |
5 |
4 |
['euprunin', 'github-actions', 'grunweg', 'mathlib4-merge-conflict-bot'] |
nobody |
269-78562 8 months ago |
unknown |
unknown |
| 30150 |
imbrem author:imbrem |
feat(CategoryTheory/Monoidal): to_additive for MonoidalCategory |
Add `AddMonoidalCategory`, the additive version of `MonoidalCategory`.
To get this to work, I needed to _remove_ the `to_additive` attributes in `Discrete.lean`, since existing code relies on the `AddMonoid M → MonoidalCategory M` instance. For now, we simply implement the additive variants by hand instead.
---
As discussed in #28718; I added an `AddMonoidalCategory` struct and tagged `MonoidalCategory` with `to_additive`, along with the lemmas in `Category.lean`.
I think this is the right approach, since under this framework the "correct" additive version of `Discrete.lean` would be mapping an `AddMonoid` to an `AddMonoidalCategory`.
Next steps would be to:
- Make `monoidal_coherence` and `coherence` support `AddMonoidalCategory`
- Add `CocartesianMonoidalCategory` extending `AddMonoidalCategory`
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-->
[](https://gitpod.io/from-referrer/)
|
t-category-theory
large-import
new-contributor
merge-conflict
awaiting-zulip
t-meta
|
444/125 |
Mathlib/CategoryTheory/Monoidal/Category.lean,Mathlib/CategoryTheory/Monoidal/Discrete.lean,Mathlib/Tactic/ToAdditive/GuessName.lean |
3 |
22 |
['JovanGerb', 'YaelDillies', 'github-actions', 'imbrem', 'mathlib4-merge-conflict-bot'] |
nobody |
242-3036 8 months ago |
281-68102 281 days ago |
0-29227 8 hours |
| 15651 |
TpmKranz author:TpmKranz |
feat(Computability/NFA): operations for Thompson's construction |
Lays the groundwork for a proof of equivalence of RE and NFA, w.r.t. described language. Actual connection to REs comes later, after the groundwork for the opposite direction has been laid.
Third chunk of #12648
---
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|
new-contributor
t-computability
merge-conflict
awaiting-author
awaiting-zulip
|
307/5 |
Mathlib/Computability/NFA.lean |
1 |
27 |
['TpmKranz', 'YaelDillies', 'dupuisf', 'github-actions', 'leanprover-community-bot-assistant', 'meithecatte', 'rudynicolop'] |
nobody |
237-20168 7 months ago |
unknown |
unknown |
| 15649 |
TpmKranz author:TpmKranz |
feat(Computability): introduce Generalised NFA as bridge to Regular Expression |
Lays the groundwork for a proof of equivalence of NFA and RE, w.r.t. described language. Actual connection to NFA comes later, after the groundwork for the opposite direction has been laid.
Second chunk of #12648
---
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[](https://gitpod.io/from-referrer/)
|
new-contributor
t-computability
merge-conflict
awaiting-author
awaiting-zulip
|
298/0 |
Mathlib.lean,Mathlib/Computability/GNFA.lean,Mathlib/Computability/Language.lean,Mathlib/Computability/RegularExpressions.lean,docs/references.bib |
5 |
7 |
['github-actions', 'mathlib4-dependent-issues-bot', 'mathlib4-merge-conflict-bot', 'meithecatte', 'trivial1711'] |
nobody |
236-36409 7 months ago |
unknown |
unknown |
| 20648 |
anthonyde author:anthonyde |
feat: formalize regular expression -> εNFA |
The file `Computability/RegularExpressionsToEpsilonNFA.lean` contains a formal definition of Thompson's method for constructing an `εNFA` from a `RegularExpression` and a proof of its correctness.
---
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- [x] depends on: #20644
- [x] depends on: #20645
[](https://gitpod.io/from-referrer/)
|
merge-conflict
t-computability
awaiting-zulip
new-contributor
|
490/0 |
Mathlib.lean,Mathlib/Computability/RegularExpressionsToEpsilonNFA.lean,docs/references.bib |
3 |
7 |
['anthonyde', 'github-actions', 'mathlib4-dependent-issues-bot', 'mathlib4-merge-conflict-bot', 'meithecatte', 'qawbecrdtey'] |
nobody |
235-73577 7 months ago |
unknown |
unknown |
| 11800 |
JADekker author:JADekker |
feat: KappaLindelöf spaces |
Define KappaLindelöf spaces by following the first one-third of the API for Lindelöf spaces. The remainder will be added in a future PR.
---
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|
please-adopt
merge-conflict
t-topology
awaiting-zulip
|
301/2 |
Mathlib.lean,Mathlib/Topology/Compactness/KappaLindelof.lean,Mathlib/Topology/Compactness/Lindelof.lean |
3 |
38 |
['ADedecker', 'JADekker', 'PatrickMassot', 'StevenClontz', 'adomani', 'github-actions', 'grunweg', 'kim-em', 'urkud'] |
nobody |
235-45443 7 months ago |
unknown |
unknown |
| 33368 |
urkud author:urkud |
feat: define `Complex.UnitDisc.shift` |
Also review the existing API
UPD: I'm going to define a `PSL(2, Real)` action instead.
---
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t-analysis
awaiting-zulip
merge-conflict
|
273/39 |
Mathlib.lean,Mathlib/Analysis/Complex/UnitDisc/Basic.lean,Mathlib/Analysis/Complex/UnitDisc/Shift.lean |
3 |
7 |
['github-actions', 'j-loreaux', 'mathlib4-merge-conflict-bot', 'sgouezel', 'urkud'] |
j-loreaux assignee:j-loreaux |
186-82002 6 months ago |
187-42335 187 days ago |
5-70690 5 days |
| 20238 |
maemre author:maemre |
feat(Computability/DFA): Closure of regular languages under some set operations |
This shows that regular languages are closed under complement and intersection by constructing DFAs for them.
---
Closure under all other operations will be proved when someone adds the proof for DFA<->regular expression equivalence, so they are not part of this PR.
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|
new-contributor
t-computability
merge-conflict
awaiting-author
awaiting-zulip
|
159/0 |
Mathlib/Computability/DFA.lean,Mathlib/Computability/Language.lean |
2 |
60 |
['EtienneC30', 'YaelDillies', 'github-actions', 'maemre', 'mathlib4-merge-conflict-bot', 'meithecatte', 'urkud'] |
nobody |
136-66811 4 months ago |
unknown |
unknown |
| 22361 |
rudynicolop author:rudynicolop |
feat(Computability/NFA): nfa closure properties |
Add the closure properties union, intersection and reversal for NFA.
---
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|
new-contributor
t-computability
merge-conflict
awaiting-author
awaiting-zulip
|
218/2 |
Mathlib/Computability/Language.lean,Mathlib/Computability/NFA.lean |
2 |
91 |
['EtienneC30', 'b-mehta', 'ctchou', 'github-actions', 'leanprover-community-bot-assistant', 'meithecatte', 'rudynicolop'] |
nobody |
136-66795 4 months ago |
unknown |
unknown |
| 23929 |
meithecatte author:meithecatte |
feat(Computability/NFA): improve bound on pumping lemma |
---
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- [x] depends on: #25321
[](https://gitpod.io/from-referrer/)
|
t-computability
awaiting-zulip
new-contributor
awaiting-author
|
101/10 |
Mathlib/Computability/EpsilonNFA.lean,Mathlib/Computability/NFA.lean |
2 |
42 |
['YaelDillies', 'dagurtomas', 'github-actions', 'leanprover-community-bot-assistant', 'mathlib4-dependent-issues-bot', 'meithecatte'] |
nobody |
136-424 4 months ago |
400-29723 400 days ago |
0-37135 10 hours |
| 35524 |
grunweg author:grunweg |
feat: text-based linter against \t followed by tactic mode |
Wait for the zulip discussion to converge. **If** there is consensus in favour of this change, summarise the motivation here.
[zulip discuss](https://leanprover.zulipchat.com/#narrow/channel/345428-mathlib-reviewers/topic/proposal.3A.20no.20more.20use.20of.20.60.E2.96.B8.60.20in.20Mathlib.3F/with/574680826)
---
There are currently 80 remaining exceptions in mathlib: ideally, these would get fixed before merging this.
Works best when combined with #35523.
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|
t-linter
awaiting-zulip
merge-conflict
|
23/2 |
Mathlib/Tactic/Linter/TextBased.lean |
1 |
5 |
['github-actions', 'grunweg', 'joneugster', 'mathlib-merge-conflicts', 'vihdzp'] |
nobody |
117-18176 3 months ago |
unknown |
unknown |
| 36890 |
vihdzp author:vihdzp |
chore(SetTheory): `le_mul_left` → `le_mul_of_pos_left` |
The new theorem names/statements match [`Nat.le_mul_of_pos_left`](https://leanprover-community.github.io/mathlib4_docs/Init/Data/Nat/Lemmas.html#Nat.le_mul_of_pos_left). The cardinal one has also been moved to an earlier file.
---
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|
t-set-theory
awaiting-zulip
merge-conflict
|
28/23 |
Mathlib/SetTheory/Cardinal/Arithmetic.lean,Mathlib/SetTheory/Cardinal/Basic.lean,Mathlib/SetTheory/Cardinal/Free.lean,Mathlib/SetTheory/Ordinal/Arithmetic.lean,Mathlib/SetTheory/Ordinal/Exponential.lean,Mathlib/SetTheory/Ordinal/Notation.lean |
6 |
2 |
['github-actions', 'mathlib-merge-conflicts'] |
nobody |
111-76980 3 months ago |
114-63720 114 days ago |
0-10819 3 hours |
| 35578 |
Shreyas4991 author:Shreyas4991 |
fix: writer monad should use an additive logging type |
The Writer monad's w type is supposed to be additive, not multiplicative. This is how it is conceptually used in Haskell (as a logging type). Haskell uses `Monoid` because it doesn't make a distinction between `AddMonoid` and `Monoid`.
[#mathlib4 > Writer should use an additive monoid @ 💬](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/Writer.20should.20use.20an.20additive.20monoid/near/574990415)
---
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|
t-data
awaiting-zulip
merge-conflict
|
10/10 |
Mathlib/Control/Monad/Cont.lean,Mathlib/Control/Monad/Writer.lean |
2 |
5 |
['Shreyas4991', 'eric-wieser', 'github-actions', 'mathlib-merge-conflicts'] |
nobody |
108-1055 3 months ago |
142-21573 142 days ago |
0-18022 5 hours |
| 30750 |
SnirBroshi author:SnirBroshi |
feat(Data/Quot): `toSet` and `equivClassOf` |
Define `toSet` which gets the set corresponding to an element of a quotient, and `equivClassOf` which gets the equivalence class of an element under a quotient.
---
I found these definitions helpful when working with quotients, specifically `ConnectedComponents` of a `TopologicalSpace`.
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[](https://gitpod.io/from-referrer/)
|
t-data
awaiting-author
awaiting-zulip
|
162/0 |
Mathlib/Data/Quot.lean,Mathlib/Data/Set/Image.lean,Mathlib/Data/SetLike/Basic.lean,Mathlib/Data/Setoid/Basic.lean |
4 |
8 |
['SnirBroshi', 'TwoFX', 'eric-wieser', 'github-actions', 'mathlib-merge-conflicts', 'wrenna-robson'] |
TwoFX assignee:TwoFX |
89-58964 2 months ago |
227-72365 227 days ago |
35-75966 35 days |
| 26299 |
adomani author:adomani |
perf: the `whitespace` linter only acts on modified files |
Introduces an `IO.Ref` to allow the `commandStart` linter to only run on files that git considers modified with respect to `master`.
The linter is also active on files that have had some error, as these are likely being modified!
The PR should also mitigate the speed-up that the linter introduced:
[#mathlib4 > A whitespace linter @ 💬](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/A.20whitespace.20linter/near/525091877)
Assuming that this goes well, a similar mechanism could be applied to several linters that do not need to run on all code, just on the modified code.
Implementation detail: the linter is currently either on or off in "whole" files. It may be also a future development to make this more granular and only run the linter on "modifed commands in modified files", but this is not currently the plan for this modification!
---
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PR is merged. Please leave a blank newline before the `---`, otherwise
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[](https://gitpod.io/from-referrer/)
|
t-linter
awaiting-zulip
awaiting-author
|
55/7 |
Mathlib/Tactic/Linter/Whitespace.lean |
1 |
20 |
['adomani', 'eric-wieser', 'github-actions', 'grunweg', 'joneugster', 'kim-em', 'leanprover-bot', 'leanprover-radar', 'mathlib-bors', 'mathlib4-merge-conflict-bot'] |
grunweg assignee:grunweg |
86-77679 2 months ago |
317-68757 317 days ago |
66-67660 66 days |
| 34963 |
Parcly-Taxel author:Parcly-Taxel |
feat(Archive): proof of the Robbins conjecture |
Cf. [#mathlib4 > Alternative axiomatization of boolean algebras @ 💬](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/Alternative.20axiomatization.20of.20boolean.20algebras/near/558900960) and #31924. |
t-algebra
awaiting-zulip
label:t-algebra$ |
610/0 |
Archive.lean,Archive/Robbins.lean |
2 |
2 |
['chrisflav', 'github-actions'] |
chrisflav assignee:chrisflav |
83-38840 2 months ago |
83-38840 83 days ago |
71-50046 71 days |
| 32742 |
LTolDe author:LTolDe |
feat(MeasureTheory/Constructions/Polish/Basic): add class SuslinSpace |
add new class `SuslinSpace` for a topological space that is an analytic set in itself
This will be useful to prove the **Effros Theorem**, see [zulip thread](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/Effros.20Theorem/with/558712441).
---
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[](https://gitpod.io/from-referrer/)
|
new-contributor
awaiting-zulip
t-measure-probability
awaiting-author
|
4/0 |
Mathlib/MeasureTheory/Constructions/Polish/Basic.lean |
1 |
10 |
['ADedecker', 'LTolDe', 'dagurtomas', 'dupuisf', 'github-actions', 'jcommelin'] |
PatrickMassot assignee:PatrickMassot |
66-26396 2 months ago |
187-45797 187 days ago |
11-6345 11 days |
| 30668 |
astrainfinita author:astrainfinita |
feat: `QuotType` |
This typeclass is primarily for use by type synonyms of `Quot` and `Quotient`. Using `QuotType` API for type synonyms of `Quot` and `Quotient` will avoid defeq abuse caused by directly using `Quot` and `Quotient` APIs.
This PR also adds some typeclasses to support different ways to find the quotient map that should be used. See the documentation comments of these typeclasses for examples of usage.
---
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PR is merged. Please leave a blank newline before the `---`, otherwise
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It's not a typical design to use these auxiliary typeclasses and term elaborators, but I haven't found a better way to support these notations.
Some of the naming may need to be discussed. For example:
- `⟦·⟧` is currently called `mkQ` in names. This distinguishes it from other `.mk`s and makes it possible to write the quotient map as `mkQ` `mkQ'` ~~`mkQ_ h`~~. But this will also require changing the old lemma names.
- It would be helpful if the names of new type classes explained their functionality better.
[Zulip](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/migrate.20to.20.60QuotLike.60.20API)
This PR continues the work from #16421.
Original PR: https://github.com/leanprover-community/mathlib4/pull/16421 |
RFC
t-data
awaiting-zulip
awaiting-author
|
629/0 |
Mathlib.lean,Mathlib/Data/QuotType.lean,MathlibTest/QuotType.lean |
3 |
22 |
['SnirBroshi', 'YaelDillies', 'astrainfinita', 'dagurtomas', 'github-actions', 'mathlib4-merge-conflict-bot', 'plp127', 'vihdzp'] |
nobody |
66-13697 2 months ago |
unknown |
unknown |
| 39026 |
fpvandoorn author:fpvandoorn |
feat: add assume tactic |
Teaching tactic: `assume p, q, r` is short for `intro (_ : p) (_ : q) (_ : r)`.
---
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[Zulip thread](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/Assume.20tactic/with/593477478)
[](https://gitpod.io/from-referrer/)
|
awaiting-zulip
t-meta
awaiting-author
|
123/0 |
Mathlib.lean,Mathlib/Tactic.lean,Mathlib/Tactic/Assume.lean,MathlibTest/Assume.lean |
4 |
9 |
['fpvandoorn', 'github-actions', 'joneugster'] |
joneugster assignee:joneugster |
44-63263 1 month ago |
unknown |
unknown |
| 38546 |
yhx-12243 author:yhx-12243 |
fix(Algebra/Module/Injective): changing the universe from the module's to the ring's |
Change the definition of
```lean
class Module.Injective : Prop where
out : ∀ ⦃X Y : Type v⦄ [AddCommGroup X] [AddCommGroup Y] [Module R X] [Module R Y]
(f : X →ₗ[R] Y) (_ : Function.Injective f) (g : X →ₗ[R] Q),
∃ h : Y →ₗ[R] Q, ∀ x, h (f x) = g x
```
into
```lean
class Module.Injective : Prop where
out : ∀ ⦃X Y : Type u⦄ [AddCommGroup X] [AddCommGroup Y] [Module R X] [Module R Y]
(f : X →ₗ[R] Y) (_ : Function.Injective f) (g : X →ₗ[R] Q),
∃ h : Y →ₗ[R] Q, ∀ x, h (f x) = g x
```
where `u` is the universe of ring, `v` is the universe of module,
to make it agree with `Module.Baer` and real mathematical definition, **without universe issues** (make the theorem [`Module.Baer.of_injective`](https://leanprover-community.github.io/mathlib4_docs/Mathlib/Algebra/Module/Injective.html#Module.Baer.of_injective) not require `Small.{v, u} R` issue).
This type of adaption also appeared in the criterion `Module.Flat`, which also uses `Type u` on testing modules.
See discussions in https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/Universe.20issue.20about.20injective.20module .
---
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Moves:
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- Nat.bit1_add_bit1
- ...
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-->
[](https://gitpod.io/from-referrer/)
|
t-algebra
new-contributor
awaiting-zulip
awaiting-author
label:t-algebra$ |
57/43 |
Mathlib/Algebra/Category/ModuleCat/Injective.lean,Mathlib/Algebra/Category/ModuleCat/Ulift.lean,Mathlib/Algebra/Module/Injective.lean,Mathlib/RepresentationTheory/FinGroupCharZero.lean,Mathlib/RingTheory/Flat/Tensor.lean,Mathlib/RingTheory/LocalProperties/Injective.lean |
6 |
10 |
['eric-wieser', 'github-actions', 'grunweg', 'mathlib-bors', 'wwylele', 'yhx-12243'] |
nobody |
33-70273 1 month ago |
77-25540 77 days ago |
0-24433 6 hours |
| 40061 |
gasparattila author:gasparattila |
chore(MeasureTheory/SetSemiring): deprecate `disjointOfUnion` |
This definition was only used in the proof of `AddContent.addContent_sUnion_le_sum`. Since it is defined using choice with very specific properties, it is unlikely to be reusable elsewhere.
---
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- [x] depends on: #40060
[](https://gitpod.io/from-referrer/)
|
t-measure-probability
awaiting-zulip
|
10/0 |
Mathlib/MeasureTheory/SetSemiring.lean |
1 |
5 |
['RemyDegenne', 'WojciechCzernous', 'gasparattila', 'github-actions', 'mathlib-dependent-issues'] |
EtienneC30 assignee:EtienneC30 |
31-30738 1 month ago |
40-57115 40 days ago |
1-8910 1 day |
| 32608 |
PrParadoxy author:PrParadoxy |
feat(LinearAlgebra/PiTensorProduct): API for PiTensorProducts indexed by sets |
This PR addresses a TODO item in LinearAlgebra/PiTensorProduct.lean:
* API for the various ways ι can be split into subsets; connect this
with the binary tensor product
-- specifically by describing tensors of type ⨂ (i : S), M i, for S : Set ι.
Our primary motivation is to formalise the notion of "restricted tensor
products". This will be the content of a follow-up PR.
Beyond that, the Set API is natural in contexts where the index type has
an independent interpretation. An example is quantum physics, where ι
ranges over distinguishable degrees of freedom, and where its is common
practice to annotate objects by the set of indices they are defined on.
---
Stub file with preliminary definition of the restricted tensor product as a direct limit of tensors indexed by finite subsets of an index type:
https://github.com/PrParadoxy/mathlib4/blob/restricted-stub/Mathlib/LinearAlgebra/PiTensorProduct/Restricted.lean
---
- [x] depends on: #32598
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any "Co-authored-by" lines) using the following format:
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- Nat.bit1_add_bit1
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below the `---`, and placed outside this HTML comment, or else they
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[](https://gitpod.io/from-referrer/)
|
new-contributor
awaiting-zulip
t-algebra
WIP
merge-conflict
label:t-algebra$ |
300/2 |
Mathlib.lean,Mathlib/LinearAlgebra/PiTensorProduct.lean,Mathlib/LinearAlgebra/PiTensorProduct/Set.lean |
3 |
32 |
['PrParadoxy', 'dagurtomas', 'eric-wieser', 'github-actions', 'goliath-klein', 'leanprover-radar', 'mathlib-merge-conflicts', 'mathlib4-dependent-issues-bot', 'mathlib4-merge-conflict-bot'] |
nobody |
23-23054 23 days ago |
202-38762 202 days ago |
10-64694 10 days |
| 39692 |
YaelDillies author:YaelDillies |
chore(Algebra/Order/BigOperators): follow the `₀` naming convention |
We have long agreed that `MonoidWithZero` lemmas corresponding to `Monoid` lemmas should be suffixed with `₀`, while currently it is the `Monoid` lemmas that are primed.
Also deprecate two primed lemmas that only differed from the unprimed versions in a minor way.
## Renames
Moves:
* `finprod_le_finprod` -> `finprod_le_finprod'`
* `finprod_le_finprod₀` -> `finprod_le_finprod`
* `Finset.prod_le_prod` -> `Finset.prod_le_prod'`
* `Finset.one_le_prod` -> `Finset.one_le_prod'`
* `Finset.prod_le_one` -> `Finset.prod_le_one'`
* `Finset.prod_le_prod_of_subset_of_one_le` -> `Finset.prod_le_prod_of_subset_of_one_le'`
* `Finset.prod_le_prod_of_subset_of_le_one` -> `Finset.prod_le_prod_of_subset_of_le_one'`
* `Finset.prod_mono_set_of_one_le` -> `Finset.prod_mono_set_of_one_le'`
* `Finset.prod_anti_set_of_le_one` -> `Finset.prod_anti_set_of_le_one'`
* `Finset.prod_le_univ_prod_of_one_le` -> `Finset.prod_le_univ_prod_of_one_le'`
* `Finset.prod_eq_one_iff_of_one_le` -> `Finset.prod_eq_one_iff_of_one_le'`
* `Finset.prod_eq_one_iff_of_le_one` -> `Finset.prod_eq_one_iff_of_le_one'`
* `Finset.single_le_prod` -> `Finset.single_le_prod'`
* `Finset.prod_fiberwise_le_prod_of_one_le_prod_fiber` -> `Finset.prod_fiberwise_le_prod_of_one_le_prod_fiber'`
* `Finset.prod_le_prod_fiberwise_of_prod_fiber_le_one` -> `Finset.prod_le_prod_fiberwise_of_prod_fiber_le_one'`
* `Finset.prod_le_prod_of_subset` -> `Finset.prod_le_prod_of_subset'`
* `Finset.prod_mono_set` -> `Finset.prod_mono_set'`
* `Finset.prod_le_prod_of_ne_one` -> `Finset.prod_le_prod_of_ne_one'`
* `Finset.prod_lt_prod` -> `Finset.prod_lt_prod'`
* `Finset.prod_lt_prod_of_nonempty` -> `Finset.prod_lt_prod_of_nonempty'`
* `Finset.prod_lt_prod_of_subset` -> `Finset.prod_lt_prod_of_subset'`
* `Finset.single_lt_prod` -> `Finset.single_lt_prod'`
* `Finset.exists_lt_of_prod_lt` -> `Finset.exists_lt_of_prod_lt'`
* `Finset.exists_le_of_prod_le` -> `Finset.exists_le_of_prod_le'`
* `Finset.exists_one_lt_of_prod_one_of_exists_ne_one` -> `Finset.exists_one_lt_of_prod_one_of_exists_ne_one'`
* `Fintype.prod_mono` -> `Fintype.prod_mono'`
* `Fintype.prod_strictMono` -> `Fintype.prod_strictMono'`
* `List.Forall₂.prod_le_prod` -> `List.Forall₂.prod_le_prod'`
* `List.Sublist.prod_le_prod` -> `List.Sublist.prod_le_prod'`
* `List.SublistForall₂.prod_le_prod` -> `List.SublistForall₂.prod_le_prod'`
* `List.prod_le_prod` -> `List.prod_le_prod'`
* `List.prod_lt_prod` -> `List.prod_lt_prod'`
* `List.exists_lt_of_prod_lt` -> `List.exists_lt_of_prod_lt'`
* `List.exists_le_of_prod_le` -> `List.exists_le_of_prod_le'`
* `Multiset.prod_lt_prod` -> `Multiset.prod_lt_prod'`
* `Multiset.prod_lt_prod_of_nonempty` -> `Multiset.prod_lt_prod_of_nonempty'`
* `Finset.prod_le_prod₀` -> `Finset.prod_le_prod`
* `Finset.prod_le_one₀` -> `Finset.prod_le_one`
* `Finset.one_le_prod₀` -> `Finset.one_le_prod`
* `Finset.prod_le_prod_of_subset_of_one_le₀` -> `Finset.prod_le_prod_of_subset_of_one_le`
* `Finset.prod_le_prod_of_subset_of_le_one₀` -> `Finset.prod_le_prod_of_subset_of_le_one`
* `Finset.prod_mono_set_of_one_le₀` -> `Finset.prod_mono_set_of_one_le`
* `Finset.prod_anti_set_of_le_one₀` -> `Finset.prod_anti_set_of_le_one`
* `Finset.prod_lt_prod₀` -> `Finset.prod_lt_prod`
* `Finset.prod_lt_prod_of_nonempty₀` -> `Finset.prod_lt_prod_of_nonempty`
## Deprecations
* `Finset.sum_nonneg'`, `Finset.one_le_prod''`
[Zulip](https://leanprover.zulipchat.com/#narrow/channel/345428-mathlib-reviewers/topic/The.20.E2.82.80.20suffix/with/604912624)
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t-algebra
t-order
awaiting-zulip
label:t-algebra$ |
283/219 |
Mathlib/Algebra/BigOperators/Finprod.lean,Mathlib/Algebra/Group/Submonoid/Pointwise.lean,Mathlib/Algebra/Order/BigOperators/Group/Finset.lean,Mathlib/Algebra/Order/BigOperators/Group/List.lean,Mathlib/Algebra/Order/BigOperators/Group/Multiset.lean,Mathlib/Algebra/Order/BigOperators/GroupWithZero/Finset.lean,Mathlib/Analysis/Analytic/Composition.lean,Mathlib/Analysis/Asymptotics/SpecificAsymptotics.lean,Mathlib/Analysis/BoxIntegral/DivergenceTheorem.lean,Mathlib/Analysis/Complex/Exponential.lean,Mathlib/Analysis/Complex/JensenFormula.lean,Mathlib/Analysis/InnerProductSpace/Orientation.lean,Mathlib/Analysis/InnerProductSpace/Subspace.lean,Mathlib/Analysis/Normed/Ring/Basic.lean,Mathlib/Analysis/Normed/Ring/InfiniteProd.lean,Mathlib/Analysis/ODE/DiscreteGronwall.lean,Mathlib/Analysis/Polynomial/MahlerMeasure.lean,Mathlib/Analysis/SpecialFunctions/Trigonometric/Chebyshev/Extremal.lean,Mathlib/Analysis/SpecificLimits/Basic.lean,Mathlib/MeasureTheory/Constructions/Pi.lean,Mathlib/MeasureTheory/Measure/HasOuterApproxClosedProd.lean,Mathlib/MeasureTheory/Measure/Lebesgue/Basic.lean,Mathlib/MeasureTheory/Measure/Lebesgue/VolumeOfBalls.lean,Mathlib/NumberTheory/Bertrand.lean,Mathlib/NumberTheory/Height/Basic.lean,Mathlib/NumberTheory/Height/MvPolynomial.lean,Mathlib/NumberTheory/NumberField/InfinitePlace/Basic.lean,Mathlib/NumberTheory/Primorial.lean,Mathlib/NumberTheory/SelbergSieve.lean,Mathlib/NumberTheory/SiegelsLemma.lean,Mathlib/NumberTheory/SmoothNumbers.lean,Mathlib/Probability/ProductMeasure.lean,Mathlib/RingTheory/Polynomial/Cyclotomic/Eval.lean,Mathlib/Topology/Algebra/InfiniteSum/ENNReal.lean,Mathlib/Topology/Algebra/InfiniteSum/Order.lean |
35 |
11 |
['Vierkantor', 'YaelDillies', 'b-mehta', 'github-actions', 'mathlib-bors', 'mathlib-merge-conflicts', 'vihdzp'] |
Vierkantor assignee:Vierkantor |
17-41349 17 days ago |
17-43015 17 days ago |
14-53682 14 days |
| 33031 |
chiyunhsu author:chiyunhsu |
feat(Combinatorics/Enumerative/Partition): add combinatorial proof of Euler's partition theorem |
The new file EulerComb.lean contains the combinatorial proof of Euler's partition theorem. The analytic proof of the theorem and its generalization of Glaisher's Theorem has already been formalized in [Glaisher.lean](https://github.com/leanprover-community/mathlib4/blob/master/Mathlib/Combinatorics/Enumerative/Partition/Glaisher.lean). The generalization of the combinatorial proof from this file to Glaisher's Theorem is within reach.
---
Zulip discussion: [#mathlib4 > Glaisher’s Bijection on integer partitions](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/Glaisher.E2.80.99s.20Bijection.20on.20integer.20partitions/with/570808111)
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|
t-combinatorics
new-contributor
awaiting-zulip
|
531/0 |
Mathlib.lean,Mathlib/Combinatorics/Enumerative/Partition/EulerComb.lean |
2 |
8 |
['chiyunhsu', 'dagurtomas', 'github-actions', 'tb65536', 'vihdzp'] |
b-mehta assignee:b-mehta |
17-22735 17 days ago |
164-49255 164 days ago |
42-19879 42 days |
| 40022 |
chenson2018 author:chenson2018 |
chore(Algebra): refactor proofs where `grind?` fails |
These are sources of technical debt as now reported in the [weekly linting report](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/Weekly.20linting.20log/with/544658968). The idea is that a successful grind proof can fail to report the theorems it used via grind?, which means that if these proofs break across toolchains that it becomes significantly harder to repair.
---
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|
t-algebra
awaiting-zulip
label:t-algebra$ |
16/6 |
Mathlib/Algebra/Group/Defs.lean,Mathlib/Algebra/Notation/Support.lean,Mathlib/Algebra/Order/BigOperators/Group/Finset.lean,Mathlib/Algebra/Order/Field/Basic.lean,Mathlib/Algebra/Order/Ring/StandardPart.lean,Mathlib/Algebra/Polynomial/Degree/Lemmas.lean |
6 |
2 |
['github-actions', 'themathqueen'] |
themathqueen assignee:themathqueen |
14-59868 14 days ago |
14-59868 14 days ago |
29-65247 29 days |
| 39233 |
wrenna-robson author:wrenna-robson |
feat: `Pi.map` rename to `Function.map` |
This PR renames `Pi.map` to `Function.map` and makes the changes necessary to support this. In particular this means that Mathlib.Logic.Function.Defs now only contains the Function namespace.
A future PR may update the names of *.piMap in line with this.
Zulip thread: [#PR reviews > #39233 - rename Pi.map to Function.map @ 💬](https://leanprover.zulipchat.com/#narrow/channel/144837-PR-reviews/topic/.2339233.20-.20rename.20Pi.2Emap.20to.20Function.2Emap/near/594605689)
General discussion regarding the Pi namespace: https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/The.20Pi.20namespace/near/594782721
---
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|
awaiting-zulip |
130/121 |
Mathlib/Algebra/Category/Grp/AB.lean,Mathlib/Algebra/Notation/Pi/Defs.lean,Mathlib/Algebra/Order/Antidiag/Nat.lean,Mathlib/Algebra/Regular/Pi.lean,Mathlib/Analysis/InnerProductSpace/Coalgebra.lean,Mathlib/Analysis/SpecialFunctions/PolarCoord.lean,Mathlib/Condensed/Discrete/LocallyConstant.lean,Mathlib/Control/Bifunctor.lean,Mathlib/Data/Finset/Powerset.lean,Mathlib/Data/Prod/Basic.lean,Mathlib/Data/Set/Prod.lean,Mathlib/Dynamics/Ergodic/MeasurePreserving.lean,Mathlib/Dynamics/PeriodicPts/Defs.lean,Mathlib/Dynamics/PeriodicPts/Lemmas.lean,Mathlib/Dynamics/TopologicalEntropy/Semiconj.lean,Mathlib/FieldTheory/Perfect.lean,Mathlib/Geometry/Manifold/IsManifold/Basic.lean,Mathlib/Geometry/Manifold/IsManifold/ExtChartAt.lean,Mathlib/GroupTheory/MonoidLocalization/Lemmas.lean,Mathlib/LinearAlgebra/Multilinear/Basis.lean,Mathlib/LinearAlgebra/Pi.lean,Mathlib/Logic/Equiv/Basic.lean,Mathlib/Logic/Equiv/PartialEquiv.lean,Mathlib/Logic/Function/Basic.lean,Mathlib/Logic/Function/Defs.lean,Mathlib/Logic/Function/Iterate.lean,Mathlib/Order/Filter/Cofinite.lean,Mathlib/Order/Filter/Pi.lean,Mathlib/RingTheory/Coalgebra/Basic.lean,Mathlib/Topology/Algebra/FilterBasis.lean,Mathlib/Topology/Algebra/Module/ContinuousLinearMap/PiProd.lean,Mathlib/Topology/Algebra/RestrictedProduct/TopologicalSpace.lean,Mathlib/Topology/Constructions.lean,Mathlib/Topology/Maps/Basic.lean,Mathlib/Topology/MetricSpace/HausdorffAlexandroff.lean,Mathlib/Topology/MetricSpace/Isometry.lean,Mathlib/Topology/NhdsWithin.lean |
37 |
5 |
['github-actions', 'mathlib-merge-conflicts', 'themathqueen', 'wrenna-robson'] |
nobody |
13-65750 13 days ago |
61-44876 61 days ago |
0-701 11 minutes |
| 37346 |
euprunin author:euprunin |
chore: golf using `grind` |
The goal of this PR is to decrease the number of times lemmas are called explicitly. Any decrease in compilation time is a welcome side effect, although it is not a primary objective.
Trace profiling results (differences <30 ms considered measurement noise):
* `✅️ SimpleGraph.Walk.IsPath.getVert_injOn`: unchanged 🎉
* `✅️ SimpleGraph.Walk.length_bypass_le`: unchanged 🎉
* `✅️ Rat.floor_intCast_div_natCast`: unchanged 🎉
* `✅️ InnerProductGeometry.norm_eq_of_angle_sub_eq_angle_sub_rev_of_angle_ne_pi`: unchanged 🎉
* `✅️ padicNorm.zero_of_padicNorm_eq_zero`: unchanged 🎉
Profiled using `set_option trace.profiler true in`.
---
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|
awaiting-zulip
merge-conflict
|
7/45 |
Mathlib/Combinatorics/SimpleGraph/Paths.lean,Mathlib/Data/Rat/Floor.lean,Mathlib/Geometry/Euclidean/Triangle.lean,Mathlib/NumberTheory/Padics/PadicNorm.lean |
4 |
23 |
['FernandoChu', 'bryangingechen', 'chenson2018', 'euprunin', 'faenuccio', 'github-actions', 'grunweg', 'mathlib-merge-conflicts'] |
nobody |
11-43336 11 days ago |
74-57784 74 days ago |
30-45859 30 days |
| 39311 |
felixpernegger author:felixpernegger |
refactor: redefine `eLpNorm` at `p = 0` |
For Zulip discussion see https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/eLpNorm.20junk.20value/with/576356442. In partuclar this change is suggestion 2 in [#mathlib4 > eLpNorm junk value @ 💬](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/eLpNorm.20junk.20value/near/576340531)
This redefined [MeasureTheory.eLpNorm](https://leanprover-community.github.io/mathlib4_docs/Mathlib/MeasureTheory/Function/LpSeminorm/Defs.html#MeasureTheory.eLpNorm) at `p = 0`. Previously it was always `0` but now it is the measure of the support of the function (technical detail: In order to avoid having to add additional arguments to `eLpNorm`, we define it as the measure of the support of the norm of the function, but this is almost always the same)
The motivation for this comes from the counting measure, in particular this then unifies with https://leanprover-community.github.io/mathlib4_docs/Mathlib/Analysis/Normed/Lp/lpSpace.html#Mem%E2%84%93p. In any case, it is "closer" to the actual mathematical definition
Unfortunately, since `eLpNorm` is widely used, the diff is very large and a lot of theorems break (i.e. now require `p != 0`). Oftentimes `p != 0` is still not required (sometimes with nontrivial arguments), I tried to avoid adding extra hypothesis whenever I could but I almost certainly missed some.
There now may also be places where we dont need `p != 0` as a hypothesis anymore (i.e. for `[Memℓp](https://leanprover-community.github.io/mathlib4_docs/Mathlib/Analysis/Normed/Lp/lpSpace.html#Mem%E2%84%93p)`), but this is not included in this PR.
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|
awaiting-zulip
merge-conflict
t-measure-probability
|
950/595 |
Mathlib/Analysis/Distribution/ContDiffMapSupportedIn.lean,Mathlib/Analysis/Distribution/SchwartzSpace/Basic.lean,Mathlib/Analysis/Distribution/TemperateGrowth.lean,Mathlib/Analysis/Distribution/TemperedDistribution.lean,Mathlib/Analysis/Distribution/TestFunction.lean,Mathlib/Analysis/Fourier/LpSpace.lean,Mathlib/Analysis/FunctionalSpaces/SobolevInequality.lean,Mathlib/Analysis/Normed/Lp/SmoothApprox.lean,Mathlib/Data/ENNReal/Holder.lean,Mathlib/MeasureTheory/Function/ContinuousMapDense.lean,Mathlib/MeasureTheory/Function/ConvergenceInMeasure.lean,Mathlib/MeasureTheory/Function/Holder.lean,Mathlib/MeasureTheory/Function/L1Space/Integrable.lean,Mathlib/MeasureTheory/Function/L2Space.lean,Mathlib/MeasureTheory/Function/LpSeminorm/Basic.lean,Mathlib/MeasureTheory/Function/LpSeminorm/CompareExp.lean,Mathlib/MeasureTheory/Function/LpSeminorm/Defs.lean,Mathlib/MeasureTheory/Function/LpSeminorm/Indicator.lean,Mathlib/MeasureTheory/Function/LpSeminorm/LpNorm.lean,Mathlib/MeasureTheory/Function/LpSeminorm/Monotonicity.lean,Mathlib/MeasureTheory/Function/LpSeminorm/SMul.lean,Mathlib/MeasureTheory/Function/LpSeminorm/TriangleInequality.lean,Mathlib/MeasureTheory/Function/LpSeminorm/Trim.lean,Mathlib/MeasureTheory/Function/LpSpace/Basic.lean,Mathlib/MeasureTheory/Function/LpSpace/Complete.lean,Mathlib/MeasureTheory/Function/LpSpace/CompleteOfCompleteLp.lean,Mathlib/MeasureTheory/Function/LpSpace/ContinuousFunctions.lean,Mathlib/MeasureTheory/Function/LpSpace/Indicator.lean,Mathlib/MeasureTheory/Function/SimpleFuncDenseLp.lean,Mathlib/MeasureTheory/Function/UniformIntegrable.lean,Mathlib/MeasureTheory/Integral/SetToL1.lean,Mathlib/Probability/CentralLimitTheorem.lean,Mathlib/Probability/Distributions/Gaussian/Basic.lean,Mathlib/Probability/Distributions/Gaussian/Fernique.lean,Mathlib/Probability/Distributions/Gaussian/HasGaussianLaw/Basic.lean,Mathlib/Probability/Distributions/Gaussian/Real.lean,Mathlib/Probability/IdentDistrib.lean,Mathlib/Probability/Kernel/Disintegration/CDFToKernel.lean,Mathlib/Probability/Kernel/Disintegration/Density.lean,Mathlib/Probability/Martingale/Convergence.lean,Mathlib/Probability/Moments/CovarianceBilinDual.lean,Mathlib/Probability/Moments/IntegrableExpMul.lean,Mathlib/Probability/Moments/SubGaussian.lean,Mathlib/Probability/Process/Filtration.lean,MathlibTest/congr.lean |
45 |
42 |
['felixpernegger', 'github-actions', 'mathlib-bors', 'mathlib-merge-conflicts', 'sgouezel'] |
nobody |
2-56069 2 days ago |
37-54015 37 days ago |
5-63685 5 days |
| 40033 |
JJYYY-JJY author:JJYYY-JJY |
chore: remove flexible linter suppressions |
Replace `simp; infer_instance` with explicit proofs.
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|
new-contributor
tech debt
awaiting-author
awaiting-zulip
|
6/6 |
Mathlib/Dynamics/TopologicalEntropy/DynamicalEntourage.lean,Mathlib/Topology/UniformSpace/Ultra/Constructions.lean |
2 |
14 |
['JJYYY-JJY', 'chenson2018', 'github-actions', 'grunweg', 'joneugster', 'mathlib-merge-conflicts', 'vihdzp'] |
nobody |
0-63083 17 hours ago |
2-66031 2 days ago |
41-30770 41 days |
| Number |
Author |
Title |
Description |
Labels |
+/- |
Modified files (first 100) |
📝 |
💬 |
All users who commented or reviewed |
Assignee(s) |
Updated |
Last status change |
total time in review |
| 40404 |
felixpernegger author:felixpernegger |
chore(MeasureTheory/Constructions/BorelSpace): remove some `erw`'s |
Extracted from #40348
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|
tech debt
t-order
t-measure-probability
|
27/6 |
Mathlib/MeasureTheory/Constructions/BorelSpace/Order.lean,Mathlib/Order/Interval/Set/Basic.lean,Mathlib/Order/OrderDual.lean |
3 |
1 |
['github-actions'] |
nobody |
33-59012 1 month ago |
33-59101 33 days ago |
33-58602 33 days |
| 40310 |
felixpernegger author:felixpernegger |
chore(Algebra): remove an `erw` |
---
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|
t-algebra
tech debt
label:t-algebra$ |
3/4 |
Mathlib/Algebra/Ring/Divisibility/Basic.lean |
1 |
10 |
['felixpernegger', 'github-actions', 'grunweg', 'j-loreaux', 'mathlib-bors'] |
nobody |
23-51131 23 days ago |
23-51192 23 days ago |
24-74342 24 days |
| 40431 |
sgouezel author:sgouezel |
chore: fix non-reducible diamond in C^* algebras |
The following fails before the PR, succeeds after it
```
example : ((instCStarAlgebraSubtypeMemStarSubalgebraComplexElemental
x).toAlgebra : Algebra ℂ ↥(StarAlgebra.elemental ℂ x)) =
(StarAlgebra.elemental ℂ x).algebra := by
with_reducible_and_instances rfl
```
---
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|
t-algebra
tech debt
label:t-algebra$ |
1/0 |
Mathlib/Algebra/Ring/Subsemiring/Basic.lean |
1 |
10 |
['eric-wieser', 'github-actions', 'grunweg', 'leanprover-radar', 'mathlib-bors', 'sgouezel', 'themathqueen'] |
nobody |
16-60077 16 days ago |
33-28645 33 days ago |
33-28146 33 days |
| 41110 |
felixpernegger author:felixpernegger |
chore: remove remaining `warning.simp.varHead` exceptions |
These are all who remain (tech debt)
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|
t-category-theory
tech debt
|
25/9 |
Mathlib/CategoryTheory/Sites/Precoverage.lean |
1 |
2 |
['felixpernegger', 'github-actions', 'jkandel1'] |
nobody |
13-49556 13 days ago |
15-29699 15 days ago |
15-29200 15 days |
| 40648 |
felixpernegger author:felixpernegger |
chore(MeasureTheory/MeasurableSpace/Constructions): remove some defeq abuse |
---
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|
tech debt |
7/2 |
Mathlib/MeasureTheory/MeasurableSpace/Constructions.lean,Mathlib/Order/Disjointed.lean |
2 |
2 |
['github-actions', 'wwylele'] |
JovanGerb assignee:JovanGerb |
13-11960 13 days ago |
27-8624 27 days ago |
27-8125 27 days |
| 40394 |
mathlib-splicebot author:mathlib-splicebot |
chore(MeasureTheory/Measure/Haar/InnerProductSpace: remove an `erw` |
Extracted from #40348. |
t-measure-probability
tech debt
|
7/6 |
Mathlib/MeasureTheory/Measure/Haar/InnerProductSpace.lean |
1 |
4 |
['felixpernegger', 'github-actions'] |
EtienneC30 assignee:EtienneC30 |
10-11953 10 days ago |
33-66903 33 days ago |
33-66404 33 days |
| 40925 |
JovanGerb author:JovanGerb |
chore(CategoryTheory/Functor/Category): don't expose `NatTrans.hcomp` |
This PR hides the definition of `NatTrans.hcomp`, because it has two equally sensible possible definitions. As a result, we can get rid of the `to_dual_insert_cast`. `simps` doesn't work for non-exposed definition, so `hcomp_app` is proved separately, and its dual `hcomp_app'` is added.
Note: some proofs break, because the `dsimp` set changes, due to the definition not being exposed. This is a bit unfortunate. There was some discussion on Zulip about changing `dsimp` for category theory into a simp set, which would fix this problem, because we could then add `hcomp_app` to this set.
---
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|
maintainer-merge
tech debt
|
30/15 |
Mathlib/AlgebraicTopology/DoldKan/NCompGamma.lean,Mathlib/AlgebraicTopology/DoldKan/PInfty.lean,Mathlib/CategoryTheory/Functor/Category.lean,Mathlib/CategoryTheory/Monoidal/Action/End.lean,Mathlib/CategoryTheory/Monoidal/End.lean,Mathlib/CategoryTheory/Triangulated/TStructure/SpectralObject.lean,Mathlib/CategoryTheory/Types/Basic.lean |
7 |
11 |
['JovanGerb', 'github-actions', 'grunweg', 'leanprover-radar', 'riccardobrasca'] |
nobody |
8-55264 8 days ago |
8-55343 8 days ago |
19-48290 19 days |
| 41200 |
joelriou author:joelriou |
feat(CategoryTheory/Presentable): pure morphisms |
In this PR, we define the notion of `κ`-pure morphisms (`IsCardinalPure`) in a category `C`. This class contains split monomorphisms and is stable under `κ`-filtered colimits. When `C` is a `κ`-accessible category, we show that `κ`-pure morphisms are monomorphisms.
---
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|
t-category-theory
tech debt
|
186/6 |
Mathlib.lean,Mathlib/CategoryTheory/Presentable/Basic.lean,Mathlib/CategoryTheory/Presentable/CardinalPure.lean |
3 |
16 |
['github-actions', 'joelriou', 'smorel394'] |
nobody |
7-55092 7 days ago |
7-55176 7 days ago |
12-21178 12 days |
| 38957 |
wwylele author:wwylele |
chore(GroupTheory/DivisibleHull): remove `backward.privateInPublic` |
---
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|
tech debt
t-group-theory
|
5/12 |
Mathlib/GroupTheory/DivisibleHull.lean |
1 |
13 |
['Komyyy', 'github-actions', 'grunweg', 'jcommelin', 'wwylele'] |
nobody |
6-50401 6 days ago |
6-50508 6 days ago |
61-62529 61 days |
| 41457 |
NoahW314 author:NoahW314 |
feat(Algebra/Group/Units/Basic): deduplicate lemmas by generalizing to `IsDedekindFiniteMonoid` |
Generalize a group of lemmas to `IsDedekindFiniteMonoid` which previously had versions for `CommMonoid`, `LeftCancelMonoid`, `RightCancelMonoid`, `CancelMonoid`, and `Ordinal`.
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|
t-algebra
tech debt
label:t-algebra$ |
31/87 |
Mathlib/Algebra/AffineMonoid/Irreducible.lean,Mathlib/Algebra/Group/Units/Basic.lean,Mathlib/AlgebraicTopology/SimplicialSet/Horn.lean,Mathlib/Combinatorics/Enumerative/DyckWord.lean,Mathlib/Data/ENat/Basic.lean,Mathlib/SetTheory/Ordinal/Arithmetic.lean,Mathlib/SetTheory/Ordinal/Exponential.lean,scripts/nolints_prime_decls.txt |
8 |
1 |
['github-actions'] |
nobody |
5-24957 5 days ago |
5-25770 5 days ago |
5-26521 5 days |
| 41427 |
YaelDillies author:YaelDillies |
refactor(Algebra/MvPolynomial): delete `coeff` |
... without a deprecation because we want dot notation to resolve to `AddMonoidAlgebra.coeff`.
For migration, replace bare `MvPolynomial.coeff`s with `AddMonoidAlgebra.coeff`. Dot notation `.coeff` will resolve to `AddMonoidAlgebra.coeff` without further change. `MvPolynomial.coeff m p` corresponds to `AddMonoidAlgebra.coeff p m`, so you will need to swap arguments.
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|
tech debt
t-algebra
label:t-algebra$ |
244/245 |
Mathlib/Algebra/MonoidAlgebra/Defs.lean,Mathlib/Algebra/MvPolynomial/Basic.lean,Mathlib/Algebra/MvPolynomial/Coeff.lean,Mathlib/Algebra/MvPolynomial/CommRing.lean,Mathlib/Algebra/MvPolynomial/Degrees.lean,Mathlib/Algebra/MvPolynomial/Division.lean,Mathlib/Algebra/MvPolynomial/Equiv.lean,Mathlib/Algebra/MvPolynomial/Eval.lean,Mathlib/Algebra/MvPolynomial/Funext.lean,Mathlib/Algebra/MvPolynomial/Monad.lean,Mathlib/Algebra/MvPolynomial/Nilpotent.lean,Mathlib/Algebra/MvPolynomial/NoZeroDivisors.lean,Mathlib/Algebra/MvPolynomial/PDeriv.lean,Mathlib/Algebra/MvPolynomial/Rename.lean,Mathlib/Algebra/MvPolynomial/Variables.lean,Mathlib/Combinatorics/Nullstellensatz.lean,Mathlib/FieldTheory/AxGrothendieck.lean,Mathlib/FieldTheory/SeparablyGenerated.lean,Mathlib/NumberTheory/Height/MvPolynomial.lean,Mathlib/RingTheory/Extension/Generators.lean,Mathlib/RingTheory/Extension/Presentation/Basic.lean,Mathlib/RingTheory/MvPolynomial/Basic.lean,Mathlib/RingTheory/MvPolynomial/FreeCommRing.lean,Mathlib/RingTheory/MvPolynomial/Groebner.lean,Mathlib/RingTheory/MvPolynomial/Homogeneous.lean,Mathlib/RingTheory/MvPolynomial/IrreducibleQuadratic.lean,Mathlib/RingTheory/MvPolynomial/MonomialOrder.lean,Mathlib/RingTheory/MvPolynomial/WeightedHomogeneous.lean,Mathlib/RingTheory/MvPowerSeries/Basic.lean,Mathlib/RingTheory/MvPowerSeries/Trunc.lean,Mathlib/RingTheory/NoetherNormalization.lean,Mathlib/RingTheory/Polynomial/Basic.lean,Mathlib/RingTheory/Polynomial/IsIntegral.lean,Mathlib/RingTheory/Polynomial/Quotient.lean,Mathlib/RingTheory/Spectrum/Prime/Polynomial.lean,Mathlib/RingTheory/TensorProduct/MvPolynomial.lean |
36 |
4 |
['eric-wieser', 'github-actions'] |
nobody |
4-56242 4 days ago |
4-56312 4 days ago |
6-18174 6 days |
| 41542 |
tb65536 author:tb65536 |
refactor(AlgebraicGeometry/Sites/Small): golf and remove defeqs |
This PR golfs and removes some defeqs. Some proofs with the help of Claude, with further golfing by myself.
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|
t-category-theory
tech debt
LLM-generated
|
59/135 |
Mathlib/AlgebraicGeometry/Sites/Small.lean,Mathlib/CategoryTheory/Sites/Over.lean |
2 |
1 |
['github-actions'] |
nobody |
3-36423 3 days ago |
3-36478 3 days ago |
3-35979 3 days |
| 37751 |
JovanGerb author:JovanGerb |
chore(Order/Filter/IsBounded): use `to_dual` |
use `to_dual` for `Filter.IsBounded`
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|
tech debt |
81/227 |
Mathlib/Algebra/Order/Monoid/Unbundled/Basic.lean,Mathlib/Order/Filter/IsBounded.lean |
2 |
3 |
['github-actions', 'mathlib-dependent-issues', 'mathlib-merge-conflicts'] |
nobody |
3-33791 3 days ago |
3-33885 3 days ago |
36-22197 36 days |
| 38039 |
themathqueen author:themathqueen |
chore(Topology): `UniformSpace.Completion` renames for morphisms |
This PR renames the following `UniformSpace.Completion` morphisms.
The `UniformSpace` namespace remains for ring morphisms and functions so that we're clear which completion we're talking about. For isometries, `UniformEquiv`s, `NormedAddGroupHom`s, there's no need for the `UniformSpace` namespace.
For the isometry definitions, we used `Isometry.ringHom{FromCompletion, Completion}` instead of `RingHom.Isometry.{fromCompletion, completion}` so that it won't clash with the function versions (`Isometry.{fromCompletion, completion}`).
RingHom
- [ ] `UniformSpace.Completion.mapRingHom` -> `UniformSpace.RingHom.toCompletion`
- [ ] `UniformSpace.Completion.extensionHom` -> `UniformSpace.RingHom.fromCompletion`
RingEquiv
- [ ] `UniformSpace.Completion.mapRingEquiv` -> `UniformSpace.RingEquiv.completion`
NormedAddGroupHom
- [ ] `NormedAddGroupHom.extension` -> `NormedAddGroupHom.fromCompletion`
RingHom isometries
- [ ] `Isometry.extensionHom` -> `Isometry.ringHomFromCompletion`
- [ ] `Isometry.mapRingHom` -> `Isometry.ringHomCompletion`
isometries
- [ ] `Isometry.completion_extension` -> `Isometry.fromCompletion`
- [ ] `Isometry.completion_map` -> `Isometry.completion`
Functions
- [ ] `UniformSpace.Completion.extension` -> `UniformSpace.Function.fromCompletion`
- [ ] `UniformSpace.Completion.map` -> `UniformSpace.Function.completion`
UniformEquiv
- [ ] `UniformSpace.Completion.mapEquiv` -> `UniformEquiv.completion`
---
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See Zulip thread: [#mathlib4 > naming convention: `UniformSpace.Completion` morphisms](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/naming.20convention.3A.20.60UniformSpace.2ECompletion.60.20morphisms)
[](https://gitpod.io/from-referrer/)
|
t-topology
tech debt
|
393/233 |
Mathlib/Analysis/InnerProductSpace/Completion.lean,Mathlib/Analysis/Normed/Field/WithAbs.lean,Mathlib/Analysis/Normed/Group/Completion.lean,Mathlib/Analysis/Normed/Group/HomCompletion.lean,Mathlib/Analysis/Normed/Group/SemiNormedGrp/Completion.lean,Mathlib/NumberTheory/NumberField/Completion/FinitePlace.lean,Mathlib/NumberTheory/NumberField/Completion/InfinitePlace.lean,Mathlib/NumberTheory/NumberField/Completion/LiesOverInstances.lean,Mathlib/NumberTheory/Padics/Complex.lean,Mathlib/NumberTheory/Padics/HeightOneSpectrum.lean,Mathlib/NumberTheory/Padics/WithVal.lean,Mathlib/RingTheory/DedekindDomain/AdicValuation.lean,Mathlib/RingTheory/LaurentSeries.lean,Mathlib/Topology/Algebra/GroupCompletion.lean,Mathlib/Topology/Algebra/LinearMapCompletion.lean,Mathlib/Topology/Algebra/UniformMulAction.lean,Mathlib/Topology/Algebra/UniformRing.lean,Mathlib/Topology/Algebra/Valued/ValuedField.lean,Mathlib/Topology/Algebra/Valued/WithVal.lean,Mathlib/Topology/Category/UniformSpace.lean,Mathlib/Topology/MetricSpace/Completion.lean,Mathlib/Topology/UniformSpace/Completion.lean |
22 |
6 |
['github-actions', 'j-loreaux', 'mathlib-merge-conflicts', 'themathqueen'] |
ADedecker assignee:ADedecker |
3-23364 3 days ago |
3-23439 3 days ago |
14-67894 14 days |
| 40575 |
gasparattila author:gasparattila |
chore(MeasureTheory/SetSemiring): golf some proofs |
The constructions which are defined using choice are unexposed and redefined to allow for these simplifications.
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The contents of `namespace IsSetRing` are moved near the top of the file without changes. To make reviewing easier, this move is in a separate commit.
[](https://gitpod.io/from-referrer/)
|
t-measure-probability
tech debt
|
176/283 |
Mathlib/MeasureTheory/SetSemiring.lean |
1 |
9 |
['gasparattila', 'github-actions', 'grunweg', 'mathlib-merge-conflicts'] |
RemyDegenne assignee:RemyDegenne |
3-11954 3 days ago |
6-22306 6 days ago |
29-23165 29 days |
| 39755 |
wwylele author:wwylele |
chore(GroupTheory): remove a defeq abuse |
---
I am not sure if this is the right change to make, so I'd like to start a discussion from this. The issue here seems to be that the simp lemma [MulAction.orbitRel.Quotient.orbit_mk](https://leanprover-community.github.io/mathlib4_docs/Mathlib/GroupTheory/GroupAction/Defs.html#MulAction.orbitRel.Quotient.orbit_mk) fired and changed the underlying type of variables in the expression, which is not defeq at instance transparency, and fails defeq check for `MulAction` ([MulAction.instElemOrbit](https://leanprover-community.github.io/mathlib4_docs/Mathlib/GroupTheory/GroupAction/Defs.html#MulAction.instElemOrbit) vs [MulAction.instElemOrbit_1](https://leanprover-community.github.io/mathlib4_docs/Mathlib/GroupTheory/GroupAction/Defs.html#MulAction.instElemOrbit_1)). The easy change here is to disable the offending simp, but it feels like a common language pitfall. Should we do either of the following instead?
- remove `MulAction.orbitRel.Quotient.orbit_mk` from default simp set
- Make the the orbit definition more transparent
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|
tech debt
t-group-theory
|
1/2 |
Mathlib/GroupTheory/GroupAction/Basic.lean |
1 |
1 |
['Multramate', 'github-actions', 'joneugster'] |
nobody |
2-66576 2 days ago |
6-49141 6 days ago |
50-27940 50 days |
| 40593 |
grunweg author:grunweg |
chore(MathlibTest): fix defLemma warnings |
In all these cases, a dummy definition was declared of type True: the `defProp` linter complains that a declaration of type `True` should be a `lemma`. Instead, change to a definition with value (the natural 0).
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[](https://gitpod.io/from-referrer/)
|
tech debt
maintainer-merge
|
5/7 |
MathlibTest/Linter/DocPrime.lean,MathlibTest/Tactic/Says/Basic.lean |
2 |
6 |
['adomani', 'github-actions', 'grunweg', 'joneugster', 'mathlib-merge-conflicts'] |
nobody |
2-62599 2 days ago |
9-57280 9 days ago |
21-30614 21 days |
| 41395 |
felixpernegger author:felixpernegger |
chore: remove redundant backward.privateInPublic exceptions |
Remove all `set_option backward.privateInPublic false` which are not needed, excluding MathlibTest
---
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|
tech debt
maintainer-merge
|
0/63 |
Mathlib/Algebra/Category/AlgCat/Basic.lean,Mathlib/Algebra/Category/BoolRing.lean,Mathlib/Algebra/Category/CommAlgCat/Basic.lean,Mathlib/Algebra/Category/CommBialgCat.lean,Mathlib/Algebra/Category/Grp/Basic.lean,Mathlib/Algebra/Category/ModuleCat/Basic.lean,Mathlib/Algebra/Category/ModuleCat/Semi.lean,Mathlib/Algebra/Category/ModuleCat/Topology/Basic.lean,Mathlib/Algebra/Category/MonCat/Basic.lean,Mathlib/Algebra/Category/Ring/Basic.lean,Mathlib/Algebra/Category/Semigrp/Basic.lean,Mathlib/AlgebraicGeometry/IdealSheaf/Subscheme.lean,Mathlib/CategoryTheory/Bicategory/InducedBicategory.lean,Mathlib/CategoryTheory/Galois/Decomposition.lean,Mathlib/CategoryTheory/Galois/EssSurj.lean,Mathlib/CategoryTheory/Monoidal/Braided/Basic.lean,Mathlib/CategoryTheory/Monoidal/Internal/FunctorCategory.lean,Mathlib/Data/NNReal/Defs.lean,Mathlib/FieldTheory/CardinalEmb.lean,Mathlib/LinearAlgebra/PerfectPairing/Restrict.lean,Mathlib/Logic/Godel/GodelBetaFunction.lean,Mathlib/NumberTheory/ArithmeticFunction/Misc.lean,Mathlib/NumberTheory/LegendreSymbol/JacobiSymbol.lean,Mathlib/NumberTheory/NumberField/House.lean,Mathlib/Order/Category/BddDistLat.lean,Mathlib/Order/Category/BddLat.lean,Mathlib/Order/Category/BddOrd.lean,Mathlib/Order/Category/BoolAlg.lean,Mathlib/Order/Category/DistLat.lean,Mathlib/Order/Category/FinBddDistLat.lean,Mathlib/Order/Category/Frm.lean,Mathlib/Order/Category/HeytAlg.lean,Mathlib/Order/Category/Lat.lean,Mathlib/Order/Category/LinOrd.lean,Mathlib/Order/Category/PartOrd.lean,Mathlib/Order/Category/PartOrdEmb.lean,Mathlib/Order/Category/Preord.lean,Mathlib/Order/DirectedInverseSystem.lean,Mathlib/Order/Nucleus.lean,Mathlib/RepresentationTheory/Continuous/TopRep.lean,Mathlib/RepresentationTheory/Rep/Basic.lean,Mathlib/RingTheory/MvPowerSeries/Evaluation.lean |
42 |
14 |
['felixpernegger', 'github-actions', 'grunweg', 'joneugster', 'leanprover-radar', 'mathlib-bors', 'mathlib-dependent-issues', 'mathlib-splicebot'] |
nobody |
2-62455 2 days ago |
6-51091 6 days ago |
6-50592 6 days |
| 41332 |
JovanGerb author:JovanGerb |
chore: fix many `nsmul`/`zsmul` diamonds |
This PR fixes many diamonds around `nsmul`/`zsmul` fields. The common problematic pattern is that we first define the `AddCommMonoid`/`AddCommGroup` instance, and later define the `SMul` or `Algebra` instance. But we need to define the `smul` operation first, so that it can be used to define the `nsmul` and `zsmul` operations such that there is no diamond.
These fixes are all ported from #38781 (the instance diamonds linter), and they were found after we got the `NSMul` and `ZSMul` type classes (#38036).
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|
tech debt
maintainer-merge
|
160/131 |
Mathlib/Algebra/DirectSum/Basic.lean,Mathlib/Algebra/Homology/HomotopyCategory/HomComplex.lean,Mathlib/Analysis/Calculus/FormalMultilinearSeries.lean,Mathlib/Analysis/Normed/Lp/lpSpace.lean,Mathlib/Analysis/Normed/Ring/WithAbs.lean,Mathlib/LinearAlgebra/CliffordAlgebra/Basic.lean,Mathlib/LinearAlgebra/Quotient/Defs.lean,Mathlib/LinearAlgebra/TensorAlgebra/Basic.lean,Mathlib/NumberTheory/Cyclotomic/Basic.lean,Mathlib/RingTheory/Extension/Cotangent/Basic.lean,Mathlib/RingTheory/Ideal/Cotangent.lean,Mathlib/RingTheory/Kaehler/Basic.lean,Mathlib/Topology/Algebra/Module/Spaces/UniformConvergenceCLM.lean,Mathlib/Topology/Algebra/Module/Spaces/WeakBilin.lean,Mathlib/Topology/Algebra/Module/Spaces/WeakDual.lean,Mathlib/Topology/Algebra/UniformConvergence.lean,Mathlib/Topology/VectorBundle/Constructions.lean |
17 |
8 |
['JovanGerb', 'eric-wieser', 'github-actions', 'joneugster', 'mathlib-merge-conflicts'] |
eric-wieser and joneugster assignee:eric-wieser assignee:joneugster |
2-61695 2 days ago |
5-41483 5 days ago |
5-65123 5 days |
| 39808 |
chenson2018 author:chenson2018 |
chore(Data): refactor proofs where `grind?` fails |
These are sources of technical debt as now reported in the [weekly linting report](https://leanprover.zulipchat.com/#narrow/channel/287929-mathlib4/topic/Weekly.20linting.20log/with/544658968). The idea is that a successful `grind` proof can fail to report the theorems it used via `grind?`, which means that if these proofs break across toolchains that it becomes significantly harder to repair.
Most of these are fixed by squeezing the call to `grind` and unsetting `linter.tacticAnalysis.verifyGrindOnly` so they no longer appear in the weekly report. Unfortunately, this can't be on by default for performance reasons, but I highly encourage using this linter when adding any `grind` proofs.
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|
t-data
tech debt
|
69/41 |
Mathlib/Data/Bool/Basic.lean,Mathlib/Data/Bool/Set.lean,Mathlib/Data/EReal/Operations.lean,Mathlib/Data/Fin/Tuple/NatAntidiagonal.lean,Mathlib/Data/Finset/Image.lean,Mathlib/Data/Finset/Powerset.lean,Mathlib/Data/Finset/Range.lean,Mathlib/Data/Finset/SMulAntidiagonal.lean,Mathlib/Data/List/Basic.lean,Mathlib/Data/List/Chain.lean,Mathlib/Data/List/Count.lean,Mathlib/Data/List/Cycle.lean,Mathlib/Data/List/Induction.lean,Mathlib/Data/List/ReduceOption.lean,Mathlib/Data/List/Sigma.lean,Mathlib/Data/List/Sort.lean,Mathlib/Data/List/TakeDrop.lean,Mathlib/Data/List/Triplewise.lean,Mathlib/Data/Option/Basic.lean,Mathlib/Data/Set/Card.lean,Mathlib/Data/Set/Disjoint.lean,Mathlib/Data/Set/Function.lean,Mathlib/Data/Set/Insert.lean,Mathlib/Data/Sum/Order.lean |
24 |
3 |
['Vierkantor', 'chenson2018', 'github-actions'] |
Vierkantor assignee:Vierkantor |
2-60131 2 days ago |
48-79725 48 days ago |
48-79226 48 days |
| 40981 |
LLaurance author:LLaurance |
chore(Algebra/Ring/BooleanRing): resolve TODO on non-terminal simp |
---
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|
t-algebra
tech debt
label:t-algebra$ |
1/3 |
Mathlib/Algebra/Ring/BooleanRing.lean |
1 |
2 |
['Multramate', 'github-actions'] |
nobody |
2-58494 2 days ago |
2-58590 2 days ago |
18-48636 18 days |
| 41564 |
felixpernegger author:felixpernegger |
chore: unexpose public sections with no defs |
This PR remove `@[expose]` from public sections when there are no `(irredcible_)def`'s inside the section anyways, so there is no reason to expose the section (does not make a difference).
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|
tech debt |
147/147 |
Mathlib/Algebra/Category/ModuleCat/ChangeOfRingsExact.lean,Mathlib/Algebra/Category/ModuleCat/Ext/Basic.lean,Mathlib/Algebra/Category/ModuleCat/Monoidal/Adjunction.lean,Mathlib/Algebra/Category/Ring/Small.lean,Mathlib/Algebra/Field/Basic.lean,Mathlib/Algebra/Field/MinimalAxioms.lean,Mathlib/Algebra/Field/Opposite.lean,Mathlib/Algebra/Field/Rat.lean,Mathlib/Algebra/Field/ULift.lean,Mathlib/Algebra/Field/ZMod.lean,Mathlib/Algebra/Group/Action/Option.lean,Mathlib/Algebra/Group/Action/Sigma.lean,Mathlib/Algebra/Group/Action/Sum.lean,Mathlib/Algebra/Group/Action/Units.lean,Mathlib/Algebra/Group/Subgroup/Actions.lean,Mathlib/Algebra/Group/Submonoid/MulAction.lean,Mathlib/Algebra/HierarchyDesign.lean,Mathlib/Algebra/Homology/ModelCategory/Injective.lean,Mathlib/Algebra/Module/Projective.lean,Mathlib/Algebra/Module/Submodule/Basic.lean,Mathlib/Algebra/MonoidAlgebra/PointwiseSMul.lean,Mathlib/Algebra/NonAssoc/LieAdmissible/Defs.lean,Mathlib/Algebra/Notation/Pi/Defs.lean,Mathlib/Algebra/Notation/Prod.lean,Mathlib/Algebra/Order/Antidiag/Tendsto.lean,Mathlib/Algebra/Order/Archimedean/Real/Basic.lean,Mathlib/Algebra/Order/Floor/Div.lean,Mathlib/Algebra/Order/Group/Action/End.lean,Mathlib/Algebra/Order/Group/End.lean,Mathlib/Algebra/Order/Group/PosPart.lean,Mathlib/Algebra/Order/Kleene.lean,Mathlib/Algebra/Order/Nonneg/Lattice.lean,Mathlib/Algebra/Order/Pi.lean,Mathlib/Algebra/Order/Ring/Unbundled/Rat.lean,Mathlib/Algebra/Ring/Commute.lean,Mathlib/Algebra/Star/TransferInstance.lean,Mathlib/AlgebraicGeometry/Birational/Dominant.lean,Mathlib/AlgebraicTopology/ModelCategory/Over.lean,Mathlib/AlgebraicTopology/SimplicialSet/AnodyneExtensions/Inner/PushoutProduct.lean,Mathlib/AlgebraicTopology/SimplicialSet/AnodyneExtensions/PushoutProduct.lean,Mathlib/Analysis/Calculus/TaylorIntegral.lean,Mathlib/Analysis/InnerProductSpace/Coalgebra.lean,Mathlib/Analysis/Normed/Algebra/TrivSqZeroExt.lean,Mathlib/Analysis/Normed/Group/Constructions.lean,Mathlib/Analysis/Normed/Module/MStructure.lean,Mathlib/Analysis/Normed/Operator/Compact/FiniteDimension.lean,Mathlib/Analysis/ODE/DiscreteGronwall.lean,Mathlib/Analysis/ODE/ExistUnique.lean,Mathlib/Analysis/Polynomial/Norm.lean,Mathlib/CategoryTheory/Adjunction/ParametrizedLimits.lean,Mathlib/CategoryTheory/Comma/CatCommSq.lean,Mathlib/CategoryTheory/Localization/DerivabilityStructure/OfLocalizedEquivalences.lean,Mathlib/CategoryTheory/MarkovCategory/Positive.lean,Mathlib/CategoryTheory/Monoidal/Cartesian/Normal.lean,Mathlib/CategoryTheory/Monoidal/Functor/Types.lean,Mathlib/CategoryTheory/Monoidal/Types/Coyoneda.lean,Mathlib/CategoryTheory/MorphismProperty/LocalClosure.lean,Mathlib/CategoryTheory/Preadditive/Comma.lean,Mathlib/CategoryTheory/Preadditive/Injective/InjectiveObject.lean,Mathlib/CategoryTheory/Sites/CoversTop/Over.lean,Mathlib/CategoryTheory/Sites/Precoverage/Generates.lean,Mathlib/Combinatorics/Additive/FreimanHom.lean,Mathlib/Computability/AkraBazzi/AkraBazzi.lean,Mathlib/Data/ENNReal/Action.lean,Mathlib/Data/ENat/Pow.lean,Mathlib/Data/Finsupp/Pointwise.lean,Mathlib/Data/Finsupp/PointwiseSMul.lean,Mathlib/Data/FunLike/Basic.lean,Mathlib/Data/FunLike/Embedding.lean,Mathlib/Data/FunLike/Equiv.lean,Mathlib/Data/FunLike/Ring.lean,Mathlib/Data/Int/Cast/Pi.lean,Mathlib/Data/LawfulXor.lean,Mathlib/Data/List/Monad.lean,Mathlib/Data/Prod/Lex.lean,Mathlib/Data/Rat/Cast/Defs.lean,Mathlib/Data/Rat/Cast/OfScientific.lean,Mathlib/Data/Sigma/Order.lean,Mathlib/Data/ZMod/IntUnitsPower.lean,Mathlib/GroupTheory/Congruence/Star.lean,Mathlib/GroupTheory/GroupAction/Embedding.lean,Mathlib/GroupTheory/IsPerfect.lean,Mathlib/GroupTheory/ResiduallyFinite.lean,Mathlib/LinearAlgebra/CliffordAlgebra/Star.lean,Mathlib/LinearAlgebra/Matrix/GeneralLinearGroup/MvPolynomial.lean,Mathlib/LinearAlgebra/Matrix/HadamardMatrix.lean,Mathlib/LinearAlgebra/Projectivization/PSL/PSL2.lean,Mathlib/LinearAlgebra/RootSystem/GeckConstruction/Semisimple.lean,Mathlib/MeasureTheory/Function/L2Space.lean,Mathlib/MeasureTheory/Function/LpSpace/CompleteOfCompleteLp.lean,Mathlib/MeasureTheory/Integral/IntegralEqImproper.lean,Mathlib/MeasureTheory/Measure/Sub.lean,Mathlib/MeasureTheory/Measure/Typeclasses/ZeroOne.lean,Mathlib/MeasureTheory/VectorMeasure/SetIntegral.lean,Mathlib/NumberTheory/ModularForms/EisensteinSeries/E2/Summable.lean,Mathlib/NumberTheory/ModularForms/EisensteinSeries/E2/Transform.lean,Mathlib/NumberTheory/NumberField/ExistsRamified.lean,Mathlib/NumberTheory/Padics/PadicVal/Defs.lean,Mathlib/NumberTheory/RamificationInertia/Valuation.lean,Mathlib/Order/ConditionallyCompleteLattice/Basic.lean |
147 |
6 |
['felixpernegger', 'github-actions', 'grunweg', 'themathqueen'] |
nobody |
2-52362 2 days ago |
2-57502 2 days ago |
2-57003 2 days |
| 40982 |
felixpernegger author:felixpernegger |
chore(Algebra/Category/ModuleCat/Stalk): avoid heartbeat modification |
Splitting up a `simp only` to get under the threshhold. Right now this is the only remaining heartbeat modification in mathlib.
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tech debt
t-category-theory
|
7/4 |
Mathlib/Algebra/Category/ModuleCat/Stalk.lean |
1 |
7 |
['felixpernegger', 'github-actions', 'joneugster', 'leanprover-radar'] |
joneugster assignee:joneugster |
2-19029 2 days ago |
2-19029 2 days ago |
18-42056 18 days |
| 29077 |
grunweg author:grunweg |
feat(Manifold/Instances/Icc): golf smoothness proof using immersions |
Prove that the inclusion of an interval into the real numbers is a smooth embedding,
and use this to golf the proof that this inclusion is smooth.
---
- [x] depends on: #28865
- [x] depends on: #40632
- [x] depends on: #40634
- [x] depends on: #40637
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If this PR depends on other PRs, please list them below this comment,
using the following format:
- [ ] depends on: #abc [optional extra text]
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-->
[](https://gitpod.io/from-referrer/)
|
t-differential-geometry
tech debt
|
75/46 |
Mathlib/Geometry/Manifold/Instances/Icc.lean |
1 |
4 |
['github-actions', 'mathlib-dependent-issues', 'mathlib-merge-conflicts', 'mathlib4-merge-conflict-bot'] |
nobody |
0-65202 18 hours ago |
0-65322 18 hours ago |
0-64823 18 hours |
| 40650 |
felixpernegger author:felixpernegger |
chore: replace (d)simp +instances with (d)simp whenever possible |
---
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In this box, the text above the `---` (if not empty) will be appended
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will format the text above it as a title.
For details on the "pull request lifecycle" in mathlib, please see:
https://leanprover-community.github.io/contribute/index.html
In particular, note that most reviewers will only notice your PR
if it passes the continuous integration checks.
Please ask for help on https://leanprover.zulipchat.com if needed.
When merging, all the commits will be squashed into a single commit
listing all co-authors.
Co-authors in the squash commit are gathered from two sources:
First, all authors of commits to this PR branch are included. Thus,
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at the bottom of the commit message (before the `---`, and also before
any "Co-authored-by" lines) using the following format:
Moves:
- Vector.* -> List.Vector.*
- ...
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- Nat.bit1_add_bit1
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|
tech debt |
6/11 |
Mathlib/Algebra/Category/CoalgCat/ComonEquivalence.lean,Mathlib/Algebra/Category/ModuleCat/Sheaf/PullbackFree.lean,Mathlib/AlgebraicGeometry/IdealSheaf/Basic.lean,Mathlib/CategoryTheory/Galois/Topology.lean,Mathlib/CategoryTheory/Localization/Trifunctor.lean,Mathlib/CategoryTheory/Sites/Over.lean,Mathlib/GroupTheory/IsSubnormal.lean |
7 |
2 |
['github-actions', 'mathlib-merge-conflicts'] |
JovanGerb assignee:JovanGerb |
0-11959 3 hours ago |
2-55397 2 days ago |
26-31341 26 days |
| 41178 |
Parcly-Taxel author:Parcly-Taxel |
chore: delete deprecated declarations to the end of 2025 |
The automated commits were made by running
```
#clear_deprecations "2025-11-01" "2025-12-31" really
```
(I had to do this in multiple sessions because VS Code kept running out of memory.) |
tech debt
maintainer-merge
|
0/2780 |
Mathlib.lean,Mathlib/Algebra/Algebra/Basic.lean,Mathlib/Algebra/Algebra/Bilinear.lean,Mathlib/Algebra/Algebra/Defs.lean,Mathlib/Algebra/Algebra/Equiv.lean,Mathlib/Algebra/BigOperators/Finsupp/Basic.lean,Mathlib/Algebra/Category/FGModuleCat/Basic.lean,Mathlib/Algebra/Category/Ring/FinitePresentation.lean,Mathlib/Algebra/DirectSum/Module.lean,Mathlib/Algebra/Group/Action/Pointwise/Set/Basic.lean,Mathlib/Algebra/Group/Hom/Defs.lean,Mathlib/Algebra/Group/Indicator.lean,Mathlib/Algebra/Group/Irreducible/Indecomposable.lean,Mathlib/Algebra/Group/Units/Defs.lean,Mathlib/Algebra/Module/LinearMap/Defs.lean,Mathlib/Algebra/Module/Submodule/Ker.lean,Mathlib/Algebra/Module/Submodule/LinearMap.lean,Mathlib/Algebra/MvPolynomial/Equiv.lean,Mathlib/Algebra/Order/AddGroupWithTop.lean,Mathlib/Algebra/Order/Archimedean/Class.lean,Mathlib/Algebra/Order/Field/Defs.lean,Mathlib/Algebra/Order/Floor/Ring.lean,Mathlib/Algebra/Order/GroupWithZero/Canonical.lean,Mathlib/Algebra/Order/IsBotOne.lean,Mathlib/Algebra/Order/Module/Archimedean.lean,Mathlib/Algebra/Order/Monoid/Unbundled/Basic.lean,Mathlib/Algebra/Order/Monoid/Unbundled/TypeTags.lean,Mathlib/Algebra/Order/Ring/StandardPart.lean,Mathlib/Algebra/Polynomial/Bivariate.lean,Mathlib/Algebra/Polynomial/Derivative.lean,Mathlib/Algebra/Polynomial/Expand.lean,Mathlib/Algebra/Polynomial/Roots.lean,Mathlib/Algebra/Polynomial/Splits.lean,Mathlib/Algebra/QuadraticAlgebra/Basic.lean,Mathlib/Algebra/QuadraticAlgebra/Defs.lean,Mathlib/Algebra/Quotient.lean,Mathlib/Algebra/Ring/Equiv.lean,Mathlib/Algebra/Star/LinearMap.lean,Mathlib/AlgebraicTopology/SimplexCategory/GeneratorsRelations/NormalForms.lean,Mathlib/Analysis/Analytic/Binomial.lean,Mathlib/Analysis/Analytic/OfScalars.lean,Mathlib/Analysis/CStarAlgebra/Unitary/Connected.lean,Mathlib/Analysis/Calculus/BumpFunction/FiniteDimension.lean,Mathlib/Analysis/Calculus/Deriv/Basic.lean,Mathlib/Analysis/Calculus/Deriv/Mul.lean,Mathlib/Analysis/Complex/Basic.lean,Mathlib/Analysis/Complex/ValueDistribution/CharacteristicFunction.lean,Mathlib/Analysis/Complex/ValueDistribution/LogCounting/Basic.lean,Mathlib/Analysis/Complex/ValueDistribution/Proximity/Basic.lean,Mathlib/Analysis/Distribution/AEEqOfIntegralContDiff.lean,Mathlib/Analysis/Distribution/SchwartzSpace/Deriv.lean,Mathlib/Analysis/Distribution/SchwartzSpace/Fourier.lean,Mathlib/Analysis/Distribution/TemperedDistribution.lean,Mathlib/Analysis/Distribution/TestFunction.lean,Mathlib/Analysis/Fourier/FourierTransform.lean,Mathlib/Analysis/Fourier/FourierTransformDeriv.lean,Mathlib/Analysis/Fourier/Inversion.lean,Mathlib/Analysis/Fourier/LpSpace.lean,Mathlib/Analysis/Fourier/PoissonSummation.lean,Mathlib/Analysis/Fourier/RiemannLebesgueLemma.lean,Mathlib/Analysis/InnerProductSpace/Adjoint.lean,Mathlib/Analysis/InnerProductSpace/Basic.lean,Mathlib/Analysis/InnerProductSpace/Laplacian.lean,Mathlib/Analysis/InnerProductSpace/Orthogonal.lean,Mathlib/Analysis/InnerProductSpace/PiL2.lean,Mathlib/Analysis/InnerProductSpace/Projection/Submodule.lean,Mathlib/Analysis/InnerProductSpace/Symmetric.lean,Mathlib/Analysis/Matrix/Order.lean,Mathlib/Analysis/MellinInversion.lean,Mathlib/Analysis/Meromorphic/Basic.lean,Mathlib/Analysis/Normed/Field/Lemmas.lean,Mathlib/Analysis/Normed/Field/WithAbs.lean,Mathlib/Analysis/Normed/Group/Continuity.lean,Mathlib/Analysis/Normed/Lp/ProdLp.lean,Mathlib/Analysis/Normed/Operator/LinearIsometry.lean,Mathlib/Analysis/Polynomial/MahlerMeasure.lean,Mathlib/Analysis/SpecialFunctions/Gaussian/FourierTransform.lean,Mathlib/CategoryTheory/Abelian/Basic.lean,Mathlib/CategoryTheory/Abelian/SerreClass/Bousfield.lean,Mathlib/CategoryTheory/EffectiveEpi/Basic.lean,Mathlib/CategoryTheory/Functor/KanExtension/DenseAt.lean,Mathlib/CategoryTheory/Groupoid.lean,Mathlib/CategoryTheory/Limits/ExactFunctor.lean,Mathlib/CategoryTheory/Limits/Shapes/Multiequalizer.lean,Mathlib/CategoryTheory/Limits/Shapes/RegularMono.lean,Mathlib/CategoryTheory/Localization/Bousfield.lean,Mathlib/CategoryTheory/Localization/DerivabilityStructure/PointwiseRightDerived.lean,Mathlib/CategoryTheory/Localization/Opposite.lean,Mathlib/CategoryTheory/Monoidal/Braided/Basic.lean,Mathlib/CategoryTheory/Monoidal/Cartesian/Grp.lean,Mathlib/CategoryTheory/Monoidal/Closed/Cartesian.lean,Mathlib/CategoryTheory/Monoidal/CommGrp_.lean,Mathlib/CategoryTheory/Monoidal/FunctorCategory.lean,Mathlib/CategoryTheory/Monoidal/Grp.lean,Mathlib/CategoryTheory/Monoidal/OfHasFiniteProducts.lean,Mathlib/CategoryTheory/Monoidal/Subcategory.lean,Mathlib/CategoryTheory/ObjectProperty/FullSubcategory.lean,Mathlib/CategoryTheory/Preadditive/AdditiveFunctor.lean,Mathlib/CategoryTheory/Presentable/OrthogonalReflection.lean,Mathlib/CategoryTheory/Quotient.lean |
257 |
15 |
['Parcly-Taxel', 'felixpernegger', 'github-actions', 'joneugster', 'mathlib-merge-conflicts'] |
joneugster assignee:joneugster |
0-5153 1 hour ago |
0-5240 1 hour ago |
11-63824 11 days |