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Pull requests: leanprover-community/mathlib4
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feat(Geometry/Convex/Cone): define and characterize generating convex cone
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-convex-geometry
Affine geometry, cones, simplices
#32300
opened Dec 1, 2025 by
bjornsolheim
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chore(NumberTheory/ArithmeticFunction): clean unnecessary imports and scopes
t-number-theory
Number theory (also use t-algebra or t-analysis to specialize)
#32298
opened Dec 1, 2025 by
qawbecrdtey
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feat(Analysis/Distribution): composition of temperate growth functions
t-analysis
Analysis (normed *, calculus)
#32297
opened Dec 1, 2025 by
mcdoll
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refactor(LinearAlgebra/FiniteDimensional/Defs): move This pull request has been delegated to the PR author (or occasionally another non-maintainer).
easy
< 20s of review time. See the lifecycle page for guidelines.
t-algebra
Algebra (groups, rings, fields, etc)
of_fact_finrank_eq_two
delegated
#32296
opened Nov 30, 2025 by
jsm28
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feat(Archive/Imo/Imo2024Q4): IMO 2024 Q4
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
IMO
Math olympiad problems
#32295
opened Nov 30, 2025 by
jsm28
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25 tasks
feat(Geometry/Euclidean/Angle/Incenter): distance from second intersection with circumcircle
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
t-euclidean-geometry
Affine and axiomatic geometry
#32294
opened Nov 30, 2025 by
jsm28
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7 tasks
doc(GroupTheory/GroupAction/SubMulAction/OfStabilizer): fix documentation and add missing
documentation
Improvements or additions to documentation
ready-to-merge
This PR has been sent to bors.
t-group-theory
Group theory
#32291
opened Nov 30, 2025 by
AntoineChambert-Loir
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feat(Geometry/Euclidean/Circumcenter): < 20s of review time. See the lifecycle page for guidelines.
t-euclidean-geometry
Affine and axiomatic geometry
circumcenter_ne_point
easy
#32290
opened Nov 30, 2025 by
jsm28
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feat(Probability): version of This PR depends on another PR (this label is automatically managed by a bot)
t-measure-probability
Measure theory / Probability theory
InfinitePi_pi for countable sets
blocked-by-other-PR
#32287
opened Nov 30, 2025 by
DavidLedvinka
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1 task
chore(ModelTheory/Bundled): Replace CategoryTheory.Bundled
t-logic
Logic (model theory, etc)
#32285
opened Nov 30, 2025 by
awainverse
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chore: make < 20s of review time. See the lifecycle page for guidelines.
t-algebra
Algebra (groups, rings, fields, etc)
toric
Part of the ongoing formalisation of toric varieties
Associated.rfl simp
easy
#32283
opened Nov 30, 2025 by
YaelDillies
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feat(Geometry/Euclidean/Angle/Incenter): unoriented angle bisection
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
t-euclidean-geometry
Affine and axiomatic geometry
#32282
opened Nov 30, 2025 by
jsm28
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10 tasks
feat(NumberTheory.Chebyshev): prove connection between prime counting and theta
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-number-theory
Number theory (also use t-algebra or t-analysis to specialize)
#32281
opened Nov 30, 2025 by
ajirving
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1 task
feat(CategoryTheory): effective epi in the category of functor to types
t-category-theory
Category theory
WIP
Work in progress
#32279
opened Nov 30, 2025 by
joelriou
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feat(Geometry/Euclidean/Incenter): excenters on sides of faces
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
t-euclidean-geometry
Affine and axiomatic geometry
#32278
opened Nov 30, 2025 by
jsm28
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2 tasks
chore: make FiniteAdeleRing a def rather than an abbrev
t-ring-theory
Ring theory
#32277
opened Nov 30, 2025 by
kbuzzard
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feat(Topology/Order): A reviewer has asked the author a question or requested changes.
t-topology
Topological spaces, uniform spaces, metric spaces, filters
HasProd and tprod lemmas for ENNReal
awaiting-author
#32276
opened Nov 30, 2025 by
DavidLedvinka
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feat: product of Borel spaces indexed by a subsingleton
t-measure-probability
Measure theory / Probability theory
#32274
opened Nov 30, 2025 by
EtienneC30
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feat(Analysis/Convex/Side): affine combinations on same / opposite side of face of a simplex as a vertex
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
t-analysis
Analysis (normed *, calculus)
t-convex-geometry
Affine geometry, cones, simplices
#32273
opened Nov 30, 2025 by
jsm28
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1 task
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