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Pull requests: leanprover-community/mathlib4
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Add Theorem about Sbtw.angle_eq and Wbtw.angle_eq
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-euclidean-geometry
Affine and axiomatic geometry
#33383
opened Dec 29, 2025 by
dsfxcimk
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feat(Combinatorics/SimpleGraph/Acyclic): characterize trees via bridges
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-combinatorics
Combinatorics
#33382
opened Dec 29, 2025 by
WangYiran01
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feat: add a version of the Schwarz lemma
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
t-analysis
Analysis (normed *, calculus)
#33381
opened Dec 29, 2025 by
urkud
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2 tasks
feat(RingTheory): Gorenstein local ring is Cohen--Macaulay local ring of type one
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
#33380
opened Dec 29, 2025 by
Thmoas-Guan
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2 tasks
feat(RingTheory): Gorenstein local ring is Cohen Macaulay
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
#33379
opened Dec 29, 2025 by
Thmoas-Guan
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5 tasks
feat(RingTheory): polynomial over Gorenstein ring is Gorenstein
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
#33377
opened Dec 29, 2025 by
Thmoas-Guan
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3 tasks
chore(Analysis/InnerProductSpace/Rayleigh): clean up and fix a non-terminal simp
maintainer-merge
A reviewer has approved the changed; awaiting maintainer approval.
t-analysis
Analysis (normed *, calculus)
#33376
opened Dec 29, 2025 by
yuanyi-350
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feat(Probability): Local and stable properties
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
brownian
Part of the ongoing formalization of the Brownian motion and stochastic integrals
t-measure-probability
Measure theory / Probability theory
#33375
opened Dec 29, 2025 by
kex-y
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3 tasks
feat: Simple lemmas about convergence in WithTop
brownian
Part of the ongoing formalization of the Brownian motion and stochastic integrals
t-topology
Topological spaces, uniform spaces, metric spaces, filters
#33374
opened Dec 29, 2025 by
kex-y
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feat(Analysis/Deriv): Add Analysis (normed *, calculus)
iteratedDeriv_comp_sub_const
t-analysis
#33373
opened Dec 29, 2025 by
yuanyi-350
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feat(Probability): Countable infimum of stopping times is a stopping time
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
brownian
Part of the ongoing formalization of the Brownian motion and stochastic integrals
t-measure-probability
Measure theory / Probability theory
#33372
opened Dec 29, 2025 by
kex-y
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1 task
feat(Probability): Right continuous filtrations
brownian
Part of the ongoing formalization of the Brownian motion and stochastic integrals
t-measure-probability
Measure theory / Probability theory
#33371
opened Dec 29, 2025 by
kex-y
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feat: all root system bases arise via 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-algebra
Algebra (groups, rings, fields, etc)
IsAddIndecomposable.baseOf
blocked-by-other-PR
#33370
opened Dec 29, 2025 by
ocfnash
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1 task
feat(Homology): 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
Ext commute with flat base change
blocked-by-other-PR
#33369
opened Dec 29, 2025 by
Thmoas-Guan
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3 tasks
feat: define Analysis (normed *, calculus)
Complex.UnitDisc.shift
t-analysis
#33368
opened Dec 29, 2025 by
urkud
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feat(Geometry/Euclidean/Angle/Oriented/Affine): Add oangle sign lemmas for two intersecting lines
t-euclidean-geometry
Affine and axiomatic geometry
#33365
opened Dec 29, 2025 by
zcyemi
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feat(Analysis/Convex/SimplicialComplex): add constructions when union is affinely independent
t-analysis
Analysis (normed *, calculus)
#33364
opened Dec 29, 2025 by
BoltonBailey
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feat: add Data (lists, quotients, numbers, etc)
empty_eq_image simp lemmas
t-data
#33363
opened Dec 28, 2025 by
BoltonBailey
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feat: weaken assumptions in Schwarz lemma
t-analysis
Analysis (normed *, calculus)
#33362
opened Dec 28, 2025 by
urkud
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feat(RingTheory/Nakayama): refine Nakayama's lemma 00DV (8)
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-ring-theory
Ring theory
#33361
opened Dec 28, 2025 by
sun123zxy
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feat(Algebra/Homology): functoriality of This PR depends on another PR (this label is automatically managed by a bot)
t-category-theory
Category theory
WIP
Work in progress
extMk with respect to the injective resolution
blocked-by-other-PR
#33360
opened Dec 28, 2025 by
joelriou
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2 tasks
feat(Algebra/Module/SpanRank): add comparing lemmas for span rank
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-algebra
Algebra (groups, rings, fields, etc)
#33359
opened Dec 28, 2025 by
sun123zxy
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feat(Algebra/Homology): functoriality of This PR depends on another PR (this label is automatically managed by a bot)
t-category-theory
Category theory
WIP
Work in progress
ProjectiveResolution.extMk
blocked-by-other-PR
#33358
opened Dec 28, 2025 by
joelriou
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1 task
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