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Pull requests: leanprover-community/mathlib4
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chore: lake shake --add-public --keep-implied --keep-prefix --fix
#42840
opened Aug 16, 2026 by
mathlib-nolints
Bot
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feat(Combinatorics/SimpleGraph/Connectivity): simple graph is 2-edge-connected iff it has no bridge
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-combinatorics
Combinatorics
#42839
opened Aug 16, 2026 by
JadAbouHawili
Contributor
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feat(Order/SupClosed): a lower directed set is sup-closed
easy
< 20s of review time. See the lifecycle page for guidelines.
t-order
Order theory
#42838
opened Aug 16, 2026 by
SnirBroshi
Collaborator
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feat(Order/Directed): the empty set is directed
easy
< 20s of review time. See the lifecycle page for guidelines.
t-order
Order theory
#42837
opened Aug 16, 2026 by
SnirBroshi
Collaborator
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feat(NumberTheory/Padics): the Amice transform is a ring isomorphism
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
t-number-theory
Number theory (also use t-algebra or t-analysis to specialize)
#42836
opened Aug 16, 2026 by
loefflerd
Contributor
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2 tasks
feat(RingTheory/NoetherNormalization): add that 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
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-ring-theory
Ring theory
s is Krull dimension to theorem statements
blocked-by-other-PR
#42835
opened Aug 16, 2026 by
rshlyakh
Contributor
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1 task
doc(Data/Rel): fix variable name in Relation.Map example
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-data
Data (lists, quotients, numbers, etc)
#42834
opened Aug 16, 2026 by
ashebson
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feat(Combinatorics/SimpleGraph/Connnectivity): efficient decidability instances
LLM-generated
PRs with substantial input from LLMs - review accordingly
t-combinatorics
Combinatorics
#42833
opened Aug 16, 2026 by
YaelDillies
Contributor
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feat(NumberTheory/Padics): the Amice transform
t-number-theory
Number theory (also use t-algebra or t-analysis to specialize)
#42832
opened Aug 16, 2026 by
loefflerd
Contributor
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feat(CategoryTheory/Linear): category algebra of R-linear category
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-category-theory
Category theory
#42831
opened Aug 16, 2026 by
ray-shang
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refactor: change ProbabilityMeasure.map to not require measurability
t-measure-probability
Measure theory / Probability theory
#42830
opened Aug 16, 2026 by
EtienneC30
Member
•
Draft
feat(Topology/InfiniteSum): applying a tsum of CLM with operator norm
t-topology
Topological spaces, uniform spaces, metric spaces, filters
#42829
opened Aug 16, 2026 by
wwylele
Collaborator
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chore(Analysis): rename CLM.lipschitz, Isometry.lipschitz, Isometry.antilipschitz
#42828
opened Aug 16, 2026 by
TJHeeringa
Contributor
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chore(RingTheory/Pochhammer): fix the type of ascPochhammer_eval_succ
t-ring-theory
Ring theory
#42827
opened Aug 16, 2026 by
wwylele
Collaborator
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feat(Order/Interval/Set/Disjoint): a union of < 20s of review time. See the lifecycle page for guidelines.
t-order
Order theory
Ioi is the Ioi of the least element
easy
#42826
opened Aug 16, 2026 by
SnirBroshi
Collaborator
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feat(RingTheory): diagonalisable bialgebras are closed under tensor product
blocked-by-other-PR
This PR depends on another PR (this label is automatically managed by a bot)
LLM-generated
PRs with substantial input from LLMs - review accordingly
t-ring-theory
Ring theory
toric
Part of the ongoing formalisation of toric varieties
#42824
opened Aug 16, 2026 by
YaelDillies
Contributor
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1 task
chore: let This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-group-theory
Group theory
tech debt
Tracking cross-cutting technical debt, see e.g. the "Technical debt counters" stream on zulip
to_additive generate hand-written additive twins
new-contributor
#42823
opened Aug 16, 2026 by
attilavjda
Contributor
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chore(Algebra/Module/Equiv): add deprecated module for This PR depends on another PR (this label is automatically managed by a bot)
/Equiv.lean
blocked-by-other-PR
#42822
opened Aug 16, 2026 by
TJHeeringa
Contributor
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1 task
chore: deprecate PMF
t-measure-probability
Measure theory / Probability theory
#42821
opened Aug 16, 2026 by
EtienneC30
Member
•
Draft
feat(Data/Nat/Choose): elementary Chernoff bound for tail sums of binomial coefficients
new-contributor
This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
t-data
Data (lists, quotients, numbers, etc)
#42820
opened Aug 16, 2026 by
tolgadgrmnc27
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1 task done
feat(Order/ConditionallyCompleteLattice/Indexed): a binary function achieves its minimum
t-order
Order theory
#42819
opened Aug 16, 2026 by
SnirBroshi
Collaborator
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chore(Algebra/Module/Equiv): split Equiv into Basic, Pi, Prod and Submodule
file-removed
A Lean module was (re)moved without a `deprecated_module` annotation
#42818
opened Aug 16, 2026 by
TJHeeringa
Contributor
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feat(ValuativeRel): instance Topological spaces, uniform spaces, metric spaces, filters
IsLinearTopology 𝒪[K] 𝒪[K]
t-topology
#42817
opened Aug 16, 2026 by
WenrongZou
Collaborator
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refactor(CategoryTheory): colimits of representable presheaves
t-category-theory
Category theory
tech debt
Tracking cross-cutting technical debt, see e.g. the "Technical debt counters" stream on zulip
WIP
Work in progress
#42816
opened Aug 16, 2026 by
joelriou
Contributor
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