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Pull requests: leanprover-community/mathlib4

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Pull requests list

feat(SimpleGraph/Connectivity/Connected): a preconnected graph with finitely many edges has finitely many vertices t-combinatorics Combinatorics
#41481 opened Jul 8, 2026 by SnirBroshi Collaborator Loading…
1
feat(Analysis/SpecialFunctions/ImproperIntegrals): fix typo ready-to-merge This PR has been sent to bors. t-analysis Analysis (normed *, calculus)
#41480 opened Jul 8, 2026 by teorth Contributor Loading…
2
feat(LinearAlgebra): tensor of homs is hom of tensors for finite projective modules t-algebra Algebra (groups, rings, fields, etc)
#41479 opened Jul 8, 2026 by YaelDillies Contributor Loading…
1
feat(Combinatorics/SimpleGraph/Paths): more length upper bounds 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
#41478 opened Jul 8, 2026 by SnirBroshi Collaborator Loading…
1 task
2
feat(Analysis/InnerProductSpace): add Hilbert-Schmidt and Eckart-Young-Mirsky new-contributor This PR was made by a contributor with at most 5 merged PRs. Welcome to the community! t-analysis Analysis (normed *, calculus)
#41477 opened Jul 8, 2026 by lucifer1004 Loading…
2
feat(SetTheory/Cardinal/NatCard): length of a nodup list whose elements come from a set t-set-theory Set theory
#41476 opened Jul 8, 2026 by SnirBroshi Collaborator Loading…
1
MvPolynomial: polynomial reduction relations and Gröbner basis criterion new-contributor This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
#41475 opened Jul 8, 2026 by Sanghyeok0 • Draft
2
feat(MeasureTheory): prove separability descends from nontrivial Lp t-measure-probability Measure theory / Probability theory
#41474 opened Jul 7, 2026 by CoolRmal Contributor Loading…
1
feat(MeasureTheory): prove regular measures have conull support t-measure-probability Measure theory / Probability theory
#41473 opened Jul 7, 2026 by CoolRmal Contributor Loading…
@urkud
1
feat(Algebra): total monoid algebra t-algebra Algebra (groups, rings, fields, etc)
#41472 opened Jul 7, 2026 by BryceT233 Contributor • Draft
3
chore: remove some unused instance arguments bors-staging This PR is currently being built by bors on the staging branch. ready-to-merge This PR has been sent to bors.
#41470 opened Jul 7, 2026 by thorimur Contributor Loading…
2
feat(SimpleGraph/Coloring/EdgeLabeling): Unique & IsEmpty instances and simplify mk t-combinatorics Combinatorics
#41469 opened Jul 7, 2026 by SnirBroshi Collaborator Loading…
1
chore(Data/Set/Encard): fix all backward.isDefEq.respectTransparency t-data Data (lists, quotients, numbers, etc) tech debt Tracking cross-cutting technical debt, see e.g. the "Technical debt counters" stream on zulip
#41468 opened Jul 7, 2026 by vlad902 Collaborator Loading…
1
chore(MulLECancellable): rename lemmas t-algebra Algebra (groups, rings, fields, etc)
#41467 opened Jul 7, 2026 by vlad902 Collaborator Loading…
1
feat(Algebra/Order): stronger sublist product inequality via diff 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)
#41466 opened Jul 7, 2026 by EzequielS2 Loading…
1 task done
6
perf: make adicCompletion a def WIP Work in progress
#41463 opened Jul 7, 2026 by smmercuri Collaborator Loading…
7
perf: lower priority of sheafToPresheaf_isRightAdjoint
#41462 opened Jul 7, 2026 by felixpernegger Contributor Loading…
3
feat(NumberTheory/SumPrimeReciprocals): represent sums/products over Nat.Primes as sums/products over Nat t-number-theory Number theory (also use t-algebra or t-analysis to specialize)
#41461 opened Jul 7, 2026 by teorth Contributor Loading…
@MichaelStollBayreuth
1
feat(SimpleGraph/Walk/Operations): more tail/dropLast/drop/reverse API t-combinatorics Combinatorics
#41460 opened Jul 7, 2026 by SnirBroshi Collaborator Loading…
1
feat(Algebra/Group): mulOpposite equivs for submonoid and subgroup 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)
#41459 opened Jul 7, 2026 by EzequielS2 Loading…
1 task done
10
feat(Data/List/Basic): lists with equal tail and dropLast are equal t-data Data (lists, quotients, numbers, etc)
#41458 opened Jul 7, 2026 by SnirBroshi Collaborator Loading…
1
feat(Algebra/Group/Units/Basic): deduplicate lemmas by generalizing to IsDedekindFiniteMonoid t-algebra Algebra (groups, rings, fields, etc) tech debt Tracking cross-cutting technical debt, see e.g. the "Technical debt counters" stream on zulip
#41457 opened Jul 7, 2026 by NoahW314 Contributor Loading…
1
chore: fix some ENat-related instances of backward.isDefEq.respectTransparency tech debt Tracking cross-cutting technical debt, see e.g. the "Technical debt counters" stream on zulip
#41456 opened Jul 7, 2026 by vlad902 Collaborator Loading…
1
feat(Topology/ContinuousMap): domMulAct action on bounded continuous maps 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
#41454 opened Jul 7, 2026 by EzequielS2 Loading…
2 tasks done
2
feat(Algebra/GroupWithZero): prove that Is{Left,Right}CancelMulZero is Dedekind-finite t-algebra Algebra (groups, rings, fields, etc)
#41453 opened Jul 7, 2026 by NoahW314 Contributor Loading…
3
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