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Pull requests: leanprover-community/mathlib4
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feat(Trigonometric/Chebyshev/Basic): calculate iterated derivatives of T and U at 1
#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
t-group-theory
Group theory
#33305
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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feat: a finite space is Baire.
large-import
Automatically added label for PRs with a significant increase in transitive imports
t-topology
Topological spaces, uniform spaces, metric spaces, filters
#33300
opened Dec 26, 2025 by
CoolRmal
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feat: Add decidable membership for Interval
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-order
Order theory
#33299
opened Dec 26, 2025 by
kingiler
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chore: mark < 20s of review time. See the lifecycle page for guidelines.
t-set-theory
Set theory
Ordinal.enumOrd with no_expose
easy
#33298
opened Dec 26, 2025 by
vihdzp
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feat(Algebra/Polynomial/Roots): add Automatically added label for PRs with a significant increase in transitive imports
t-algebra
Algebra (groups, rings, fields, etc)
card_rootSet_le
large-import
#33297
opened Dec 26, 2025 by
tb65536
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feat(Algebra/Central/End): center of endomorphisms of a free module
t-algebra
Algebra (groups, rings, fields, etc)
#33295
opened Dec 26, 2025 by
AntoineChambert-Loir
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refactor: deprecate This pull request has been delegated to the PR author (or occasionally another non-maintainer).
t-order
Order theory
t-set-theory
Set theory
Ordinal.IsNormal for Order.IsNormal
delegated
#33294
opened Dec 26, 2025 by
vihdzp
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feat(Combinatorics/SimpleGraphs/LineGraph): lift copies/isomorphisms to line-graph
large-import
Automatically added label for PRs with a significant increase in transitive imports
t-combinatorics
Combinatorics
#33292
opened Dec 25, 2025 by
SnirBroshi
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refactor(Computability): File for state transition systems
t-computability
Computability theory (TMs, DFAs, languages, grammars, etc)
#33291
opened Dec 25, 2025 by
BoltonBailey
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feat(Analysis/SpecialFunctions/Integrals): add This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-analysis
Analysis (normed *, calculus)
∫ x : ℝ in a..b, (c ^ 2 + x ^ 2)⁻¹
new-contributor
#33289
opened Dec 25, 2025 by
michelsol
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chore(Combinatorics/SimpleGraph/Paths): review API
t-combinatorics
Combinatorics
#33288
opened Dec 25, 2025 by
vihdzp
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feat(CategoryTheory/Sites): more API for IsSheafFor
maintainer-merge
A reviewer has approved the changed; awaiting maintainer approval.
t-category-theory
Category theory
#33287
opened Dec 25, 2025 by
joelriou
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