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Pull requests: leanprover-community/mathlib4
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feat(Combinatorics/SimpleGraph/Decomp): Combinatorics
dropUntil API to match existing takeUntil API
t-combinatorics
#41668
opened Jul 13, 2026 by
SnirBroshi
Collaborator
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feat(GCDMonoid): DistribLattice Associates
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-algebra
Algebra (groups, rings, fields, etc)
#41667
opened Jul 13, 2026 by
alreadydone
Contributor
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1 task
feat(Order): constructors for DistribLattice and IsModularLattice
large-import
Automatically added label for PRs with a significant increase in transitive imports
t-order
Order theory
#41666
opened Jul 13, 2026 by
alreadydone
Contributor
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feat(Topology/Connected): transport path-connectedness along homeomorphisms
LLM-generated
PRs with substantial input from LLMs - review accordingly
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
#41665
opened Jul 12, 2026 by
korbonits
Contributor
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perf(FieldTheory/PurelyInseparable): golf proof
t-algebra
Algebra (groups, rings, fields, etc)
#41664
opened Jul 12, 2026 by
kbuzzard
Member
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feat(Topology/Connected): products of locally (path-)connected spaces are locally (path-)connected
LLM-generated
PRs with substantial input from LLMs - review accordingly
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
#41663
opened Jul 12, 2026 by
korbonits
Contributor
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fix(scripts/runSkimmer): only Modifies the continuous integration setup or other automation
easy
< 20s of review time. See the lifecycle page for guidelines.
lake update skimmer
CI
#41662
opened Jul 12, 2026 by
thorimur
Contributor
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feat(Topology/Connected): connected and path components of products and pi types
LLM-generated
PRs with substantial input from LLMs - review accordingly
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
#41661
opened Jul 12, 2026 by
korbonits
Contributor
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chore(CategoryTheory/Presentable/Basic): remove bad instance
t-category-theory
Category theory
#41660
opened Jul 12, 2026 by
JovanGerb
Contributor
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feat(Algebra/Order/GroupWithZero): generalize from Algebra (groups, rings, fields, etc)
MonoidWithZero to MulZeroClass
t-algebra
#41659
opened Jul 12, 2026 by
NoahW314
Contributor
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chore: Fix documentation for nnqsmul and nnqsmul_def
t-algebra
Algebra (groups, rings, fields, etc)
#41658
opened Jul 12, 2026 by
ldct
Collaborator
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feat: Linter
haveI/letI tactic linter
t-linter
#41657
opened Jul 12, 2026 by
JovanGerb
Contributor
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feat(AlgebraicTopology): order relation between simplices of the nerve of a partial order
t-algebraic-topology
Algebraic topology
#41656
opened Jul 12, 2026 by
joelriou
Contributor
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feat(AlgebraicTopology): filtration of This PR depends on another PR (this label is automatically managed by a bot)
t-algebraic-topology
Algebraic topology
WIP
Work in progress
Δ[p] ⊗ Δ[1]
blocked-by-other-PR
#41655
opened Jul 12, 2026 by
joelriou
Contributor
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2 tasks
chore: rename PRs with substantial input from LLMs - review accordingly
t-group-theory
Group theory
QuotientAddGroup.mk_out_eq_mul to mk_out_eq_add
LLM-generated
#41654
opened Jul 12, 2026 by
adomani
Contributor
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fix(Data/Finsupp/MonomialOrder): add the missing namespace for deprecated names
easy
< 20s of review time. See the lifecycle page for guidelines.
t-data
Data (lists, quotients, numbers, etc)
#41653
opened Jul 12, 2026 by
Hagb
Collaborator
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feat(GroupTheory/PGroup): maximal subgroups of abelian p-groups have index p
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
t-group-theory
Group theory
#41652
opened Jul 12, 2026 by
xroblot
Collaborator
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1 task
feat(GroupTheory): coatoms of the subgroup lattice and the Set.Ici correspondence
t-group-theory
Group theory
WIP
Work in progress
#41651
opened Jul 12, 2026 by
xroblot
Collaborator
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feat(FieldTheory/IntermediateField): adjoining a shifted or scaled generator
t-algebra
Algebra (groups, rings, fields, etc)
#41649
opened Jul 12, 2026 by
xroblot
Collaborator
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chore(Combinatorics/SimpleGraph): fix naming of < 20s of review time. See the lifecycle page for guidelines.
t-combinatorics
Combinatorics
colorable_iff_forall_connectedComponents
easy
#41648
opened Jul 12, 2026 by
Rida-Hamadani
Collaborator
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chore: add missing PRs with substantial input from LLMs - review accordingly
t-topology
Topological spaces, uniform spaces, metric spaces, filters
to_additive docstrings (Normed, TransferInstance)
LLM-generated
#41647
opened Jul 12, 2026 by
adomani
Contributor
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chore: convenience constructor for This PR depends on another PR (this label is automatically managed by a bot)
merge-conflict
The PR has a merge conflict with master, and needs manual merging. (this label is managed by a bot)
t-differential-geometry
Manifolds etc
IsImmersionAtOfComplement
blocked-by-other-PR
#41646
opened Jul 12, 2026 by
grunweg
Contributor
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1 task
chore: add missing PRs with substantial input from LLMs - review accordingly
to_additive docstrings in Combinatorics and Dynamics
LLM-generated
chore: add missing PRs with substantial input from LLMs - review accordingly
to_additive docstrings in Algebra (BigOperators, Order, ...)
LLM-generated
chore: add missing PRs with substantial input from LLMs - review accordingly
to_additive docstrings in category theory files
LLM-generated
#41643
opened Jul 12, 2026 by
adomani
Contributor
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