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Pull requests: leanprover-community/mathlib4
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doc(Topology/Defs/Filter): mention "Kolmogorov quotient" in docstring
documentation
Improvements or additions to documentation
easy
< 20s of review time. See the lifecycle page for guidelines.
t-topology
Topological spaces, uniform spaces, metric spaces, filters
#33327
opened Dec 27, 2025 by
vihdzp
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feat(RingTheory/DedekindDomain/GaussLemma): Gauss's Lemma for Dedekind Domains
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
t-ring-theory
Ring theory
#33326
opened Dec 26, 2025 by
fbarroero
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1 task
chore(Order/Defs/Unbundled): deprecate Order theory
IsSymm in favor of core's Std.Symm
t-order
#33325
opened Dec 26, 2025 by
SnirBroshi
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feat(RingTheory/DedekindDomain/AdicValuation): introduce Ring theory
intAdicAbv
t-ring-theory
#33324
opened Dec 26, 2025 by
fbarroero
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fix: fix This PR has been sent to bors.
t-linter
Linter
#lint by marking tacticDocs as public
ready-to-merge
#33322
opened Dec 26, 2025 by
thorimur
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feat: linear independence of indecomposable roots of a root system
large-import
Automatically added label for PRs with a significant increase in transitive imports
t-algebra
Algebra (groups, rings, fields, etc)
#33321
opened Dec 26, 2025 by
ocfnash
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chore(Algebra/Order/SuccPred): add This PR doesn't pass CI yet. This label is automatically removed once it does.
t-algebra
Algebra (groups, rings, fields, etc)
t-order
Order theory
simp tags
awaiting-CI
#33320
opened Dec 26, 2025 by
vihdzp
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refactor(SetTheory/Ordinal/Arithmetic): deprecate Set theory
boundedLimitRecOn
t-set-theory
#33319
opened Dec 26, 2025 by
vihdzp
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doc(Order/IsNormal): remove outdated todo
documentation
Improvements or additions to documentation
easy
< 20s of review time. See the lifecycle page for guidelines.
t-order
Order theory
#33317
opened Dec 26, 2025 by
vihdzp
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chore: deprecate duplicate declaration for the scalar product as a sesquilinear form
t-analysis
Analysis (normed *, calculus)
#33316
opened Dec 26, 2025 by
sgouezel
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doc(Data): fix file refs
ready-to-merge
This PR has been sent to bors.
t-data
Data (lists, quotients, numbers, etc)
#33315
opened Dec 26, 2025 by
harahu
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feat(Trigonometric/Chebyshev/Basic): calculate iterated derivatives of T and U at 1
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
#33314
opened Dec 26, 2025 by
YuvalFilmus
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1 task
feat(Combinatorics/SimpleGraph/EdgeColoring): create a basic edge-coloring API
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
large-import
Automatically added label for PRs with a significant increase in transitive imports
t-combinatorics
Combinatorics
#33313
opened Dec 26, 2025 by
SnirBroshi
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1 task
feat(Polynomial/Chebyshev): formulas for iterated derivatives of T and U at 1
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
#33312
opened Dec 26, 2025 by
YuvalFilmus
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2 tasks
feat(Polynomial/Chebyshev): calculate values of T and U at zero
t-ring-theory
Ring theory
#33311
opened Dec 26, 2025 by
YuvalFilmus
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feat(RingTheory/WittVector): isomorphism of Witt vectors mod p with base ring
awaiting-author
A reviewer has asked the author a question or requested changes.
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-ring-theory
Ring theory
#33310
opened Dec 26, 2025 by
sglasman
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feat(Topology.GDelta.Basic): add helpers for IsMeagre
large-import
Automatically added label for PRs with a significant increase in transitive imports
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-topology
Topological spaces, uniform spaces, metric spaces, filters
#33308
opened Dec 26, 2025 by
LTolDe
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Orientable manifolds updated
t-differential-geometry
Manifolds etc
WIP
Work in progress
#33307
opened Dec 26, 2025 by
grunweg
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feat(Polynomial/Derivative): formulas for iterated derivatives of P * X^m
t-algebra
Algebra (groups, rings, fields, etc)
#33306
opened Dec 26, 2025 by
YuvalFilmus
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doc(GroupTheory): fix file refs
delegated
This pull request has been delegated to the PR author (or occasionally another non-maintainer).
t-group-theory
Group theory
#33305
opened Dec 26, 2025 by
harahu
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doc(CategoryTheory): fix file refs
ready-to-merge
This PR has been sent to bors.
t-category-theory
Category theory
#33304
opened Dec 26, 2025 by
harahu
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feat(CategoryTheory): The monads and comonads of locally cartesian closed categories
t-category-theory
Category theory
WIP
Work in progress
#33303
opened Dec 26, 2025 by
sinhp
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chore(Algebra/Central/End): generalize Algebra (groups, rings, fields, etc)
Algebra.IsCentral.instEnd
t-algebra
#33301
opened Dec 26, 2025 by
themathqueen
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