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Pull requests: leanprover-community/mathlib4

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Pull requests list

feat: GroupWithZero versions of le lemmas WIP Work in progress
#34120 opened Jan 19, 2026 by winstonyin Loading…
feat(Analysis): classical adjacency matrices are quantum adjacency matrices blocked-by-other-PR This PR depends on another PR (this label is automatically managed by a bot) t-analysis Analysis (normed *, calculus)
#34119 opened Jan 19, 2026 by themathqueen Draft
1 task
refactor(RingTheory/Ideal/AssociatedPrime/Basic): switch definition over to colon t-algebra Algebra (groups, rings, fields, etc) t-ring-theory Ring theory
#34118 opened Jan 18, 2026 by tb65536 Loading…
feat(AlgebraicGeometry): geometric points induce points on the étale site 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-algebraic-geometry Algebraic geometry WIP Work in progress
#34116 opened Jan 18, 2026 by chrisflav Loading…
2 tasks
chore: deprecate removed modules
#34115 opened Jan 18, 2026 by Ruben-VandeVelde Loading…
feat(Algebra/Algebra/Subalgebra): generalize iSupLift to T ≤ iSup K 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)
#34114 opened Jan 18, 2026 by bilichboris Loading…
chore: golf using grind and add grind annotations
#34112 opened Jan 18, 2026 by euprunin Loading…
feat(Algebra/Star/LinearMap): the convolutive intrinsic star ring on linear maps t-algebra Algebra (groups, rings, fields, etc)
#34111 opened Jan 18, 2026 by themathqueen Loading…
feat(NumberTheory/FactorizationProperties): Infinite abundant numbers, then golf t-number-theory Number theory (also use t-algebra or t-analysis to specialize)
#34109 opened Jan 18, 2026 by metakunt Loading…
feat(InformationTheory/Coding): Kraft-McMillan inequality for uniquely decodable codes new-contributor This PR was made by a contributor with at most 5 merged PRs. Welcome to the community! t-measure-probability Measure theory / Probability theory
#34108 opened Jan 18, 2026 by elazarg Loading…
feat: map a seminorm along a surjective linear map blocked-by-other-PR This PR depends on another PR (this label is automatically managed by a bot)
#34106 opened Jan 18, 2026 by ADedecker Draft
2 tasks
feat: IsLUB version of [c]sSup_add blocked-by-other-PR This PR depends on another PR (this label is automatically managed by a bot)
#34105 opened Jan 18, 2026 by ADedecker Loading…
1 task
feat: IsLUB versions of [c]sSup_image2_eq_[c]sSup_[c]sSup t-order Order theory
#34104 opened Jan 18, 2026 by ADedecker Loading…
chore(Analysis/InnerProductSpace/Orthogonal): add simp attrib, rename t-analysis Analysis (normed *, calculus)
#34103 opened Jan 18, 2026 by yoh-tanimoto Loading…
feat(Complex/UnitDisc): add CanLift t-analysis Analysis (normed *, calculus)
#34102 opened Jan 18, 2026 by urkud Loading…
feat(Analysis/Distribution): more smulLeftCLM lemmas for tempered distributions t-analysis Analysis (normed *, calculus)
#34100 opened Jan 18, 2026 by mcdoll Loading…
feat(Analysis/Distribution): Fourier multiplier blocked-by-other-PR 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-analysis Analysis (normed *, calculus) WIP Work in progress
#34099 opened Jan 18, 2026 by mcdoll Loading…
1 task
chore(MeasureTheory): golf some proofs blocked-by-other-PR This PR depends on another PR (this label is automatically managed by a bot) t-measure-probability Measure theory / Probability theory
#34098 opened Jan 18, 2026 by CoolRmal Loading…
1 task
chore(MeasureTheory): make some arguments implicit easy < 20s of review time. See the lifecycle page for guidelines. t-measure-probability Measure theory / Probability theory
#34097 opened Jan 18, 2026 by CoolRmal Loading…
chore(EMetric/*): rename theorems
#34096 opened Jan 18, 2026 by urkud Draft
feat(Data/Finsupp/Single): generalize single_eq_set_indicator easy < 20s of review time. See the lifecycle page for guidelines. 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)
#34095 opened Jan 18, 2026 by IlPreteRosso Loading…
feat(Topology/Sheaves): use abbrev for Presheaf, IsSheaf, and 'Sheaf' 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
#34094 opened Jan 18, 2026 by Brian-Nugent Loading…
ProTip! no:milestone will show everything without a milestone.