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Pull requests list

feat: prove strict group homs are stable under Prod.map 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
#39270 opened May 12, 2026 by m13683320924-hue Loading…
2
feat(Algebra/Spectrum): add the second resolvent identity 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)
#39269 opened May 12, 2026 by godofecht Loading…
2
feat(Algebra/Order/BigOperators/Ring/Finset): weaken hypothesis in the Cauchy-Schwarz inequality 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)
#39268 opened May 12, 2026 by mortarsanjaya Contributor Loading…
2
perf: increase some instance priorities t-algebra Algebra (groups, rings, fields, etc) WIP Work in progress
#39267 opened May 12, 2026 by MichaelStollBayreuth Contributor Loading…
1
feat: trivial homeomorphisms between quotient spaces t-topology Topological spaces, uniform spaces, metric spaces, filters
#39266 opened May 12, 2026 by ADedecker Member Loading…
1
feat(CategoryTheory/Localization): transport resolutions along 2-commutative squares t-category-theory Category theory
#39265 opened May 12, 2026 by joelriou Contributor Loading…
1
perf(Algebra/EuclideanDomain/Defs): prio decrease of EuclideanDomain.toCommRing t-algebra Algebra (groups, rings, fields, etc)
#39263 opened May 12, 2026 by kbuzzard Member Loading…
4
chore(Algebra/Ring/CharZero): remove scoped in simp attributes t-algebra Algebra (groups, rings, fields, etc)
#39262 opened May 12, 2026 by Paul-Lez Collaborator Loading…
3
chore: remove MathlibTest/fun_prop2.lean file-removed A Lean module was (re)moved without a `deprecated_module` annotation
#39261 opened May 12, 2026 by grunweg Contributor Loading…
2
feat(Topology/Algebra/Module/Complement): bundle prodEquivOfIsCompl and quotientEquivOfIsCompl, add ContinuousLinearMap.ofIsTopCompl 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
#39260 opened May 12, 2026 by sharky564 Contributor Loading…
@themathqueen
2
chore(Tactic/StacksAttribute): add deprecated module delegated This pull request has been delegated to the PR author (or occasionally another non-maintainer). file-removed A Lean module was (re)moved without a `deprecated_module` annotation
#39259 opened May 12, 2026 by jcommelin Member Loading…
1 task done
@adomani
4
feat(NumberTheory/ModularForms): E₄, E₆ surjectively map onto level-1 graded ring blocked-by-other-PR This PR depends on another PR (this label is automatically managed by a bot)
#39258 opened May 12, 2026 by CBirkbeck Collaborator • Draft
1 task
2
feat(SymbolicDynamics): add monotonicity lemma for LanguageOn new-contributor This PR was made by a contributor with at most 5 merged PRs. Welcome to the community! t-dynamics Dynamical Systems
#39256 opened May 12, 2026 by Sfgangloff Contributor Loading…
3
chore(Tactic): abstract over Stacks attribute, add Wikidata attribute file-removed A Lean module was (re)moved without a `deprecated_module` annotation LLM-generated PRs with substantial input from LLMs - review accordingly merge-conflict The PR has a merge conflict with master, and needs manual merging. (this label is managed by a bot)
#39255 opened May 12, 2026 by jcommelin Member • Draft
1 task done
3
feat: define contour integrals t-measure-probability Measure theory / Probability theory
#39254 opened May 12, 2026 by urkud Member Loading…
1
feat(LinearAlgebra/Basis/HasCanonicalBasis): propose HasCanonicalBasis class merge-conflict The PR has a merge conflict with master, and needs manual merging. (this label is managed by a bot)
#39253 opened May 12, 2026 by Paul-Lez Collaborator • Draft
1
dev: lint modules with just one exposed def, to manually inspect t-meta Tactics, attributes or user commands WIP Work in progress
#39248 opened May 12, 2026 by grunweg Contributor Loading…
2
doc: add newlines to clarify paragraph breaks
#39247 opened May 12, 2026 by grunweg Contributor Loading…
3
chore: deprecate Ordinal.one_ne_zero → _root_.one_ne_zero easy < 20s of review time. See the lifecycle page for guidelines. t-set-theory Set theory
#39240 opened May 12, 2026 by vihdzp Collaborator Loading…
1
feat(FieldTheory/Finite): irreducible polynomial divides X^q^n - X iff degree divides n 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)
#39239 opened May 12, 2026 by alainchmt Collaborator Loading…
2
feat(AlgebraicTopology): HomologyPretheory for Eilenberg-Steenrod homology 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-algebraic-topology Algebraic topology
#39236 opened May 12, 2026 by quantumsnow Contributor Loading…
23
doc(Algebra/Module/StablyFree): fix typos in docstring documentation Improvements or additions to documentation t-algebra Algebra (groups, rings, fields, etc)
#39234 opened May 12, 2026 by mbkybky Collaborator Loading…
1
feat: Pi.map rename to Function.map awaiting-zulip There is a Zulip discussion; the author should await and report/implement the decision reached there
#39233 opened May 12, 2026 by linesthatinterlace Collaborator Loading…
1
feat(Analysis/Complex): residue theorem for rectangular contours new-contributor This PR was made by a contributor with at most 5 merged PRs. Welcome to the community! t-analysis Analysis (normed *, calculus)
#39232 opened May 12, 2026 by jerwaynejones • Draft
2
chore(RingTheory/PicardGroup): drop StrongRankCondition assumptions in two lemmas t-ring-theory Ring theory
#39231 opened May 12, 2026 by mbkybky Collaborator Loading…
1
ProTip! Exclude everything labeled bug with -label:bug.