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Pull requests: leanprover-community/mathlib4

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Pull requests list

feat(Analysis/Convex/Strict/Extreme): star (extremePoints 𝕜 s) = extremePoints 𝕜 (star s) t-analysis Analysis (normed *, calculus)
#42310 opened Jul 31, 2026 by themathqueen Collaborator Loading…
1
feat(Analysis/CStarAlgebra/Basic): star (ball x r) = ball (star x) r easy < 20s of review time. See the lifecycle page for guidelines. t-analysis Analysis (normed *, calculus)
#42309 opened Jul 31, 2026 by themathqueen Collaborator Loading…
1
feat(Geometry/Euclidean/Sphere/SecondInter): add secondInter difference lemmas t-euclidean-geometry Affine and axiomatic geometry
#42308 opened Jul 31, 2026 by Scarlett-le Contributor Loading…
1
feat(Analysis): define Bessel potential spaces t-analysis Analysis (normed *, calculus)
#42307 opened Jul 31, 2026 by mcdoll Member Loading…
2
feat(NumberTheory/Padics): add Rat.padicValuation_natCast easy < 20s of review time. See the lifecycle page for guidelines. t-number-theory Number theory (also use t-algebra or t-analysis to specialize)
#42306 opened Jul 31, 2026 by b-mehta Contributor Loading…
1
feat(NumberTheory/Bernoulli): prove Kummer's congruence for Bernoulli numbers
#42304 opened Jul 31, 2026 by b-mehta Contributor • Draft
1
feat(Algebra/QuadraticAlgebra): quadratic algebras over ℤ blocked-by-other-PR This PR depends on another PR (this label is automatically managed by a bot)
#42298 opened Jul 31, 2026 by xroblot Collaborator Loading…
2 tasks
2
feat(RingTheory/QuadraticAlgebra): trace, norm and discriminant as Algebra invariants blocked-by-other-PR This PR depends on another PR (this label is automatically managed by a bot) t-ring-theory Ring theory
#42297 opened Jul 31, 2026 by xroblot Collaborator Loading…
1 task
2
feat(Algebra/Ring/Int/Parity): add Int.sq_emod_four and relocate square-mod-four lemma
#42296 opened Jul 31, 2026 by xroblot Collaborator Loading…
3
feat(AlgebraicTopology/SimplicialSet): construction of morphisms from Δ[p] ⊗ Δ[1] blocked-by-other-PR This PR depends on another PR (this label is automatically managed by a bot) t-algebraic-topology Algebraic topology WIP Work in progress
#42295 opened Jul 31, 2026 by joelriou Contributor Loading…
5 tasks
2
chore(Analysis/Seminorm): generalize smul_le_smul to arbitrary scalar multiplication awaiting-author A reviewer has asked the author a question or requested changes. t-analysis Analysis (normed *, calculus)
#42294 opened Jul 31, 2026 by mcdoll Member Loading…
4
feat(Logic/Relation): newman's lemma and unique normal forms awaiting-author A reviewer has asked the author a question or requested changes. 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-logic Logic (model theory, etc)
#42293 opened Jul 31, 2026 by AlyciaBHZ Loading…
6
feat(Probability/Kernel/Composition): kernel Radon-Nikodym derivative of composition products 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-measure-probability Measure theory / Probability theory
#42292 opened Jul 31, 2026 by stevenliuyi Loading…
2
feat: generalize transfer instance type class assumptions tech debt Tracking cross-cutting technical debt, see e.g. the "Technical debt counters" stream on zulip
#42291 opened Jul 30, 2026 by JovanGerb Contributor Loading…
5
chore: rename Directed to Predirected 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) WIP Work in progress
#42290 opened Jul 30, 2026 by kbuzzard Member Loading…
refactor: add a separate delaborator for TotalSpace.mk' t-differential-geometry Manifolds etc
#42289 opened Jul 30, 2026 by grunweg Contributor Loading…
22
feat(Powerseries): if P.subst Q = X, then Q.subst P = X easy < 20s of review time. See the lifecycle page for guidelines. t-ring-theory Ring theory
#42288 opened Jul 30, 2026 by yuanyi-350 Collaborator Loading…
1
feat(Tactic/Linter): openScoped linter suggests open scoped for notation-only opens t-linter Linter
#42285 opened Jul 30, 2026 by marcelolynch Contributor • Draft
1
feat: add new Wanted directory for proof_wanted. LLM-generated PRs with substantial input from LLMs - review accordingly WIP Work in progress
#42284 opened Jul 30, 2026 by kbuzzard Member Loading…
4
feat(RingTheory): diagonalisable Hopf algebras t-ring-theory Ring theory toric Part of the ongoing formalisation of toric varieties
#42283 opened Jul 30, 2026 by YaelDillies Contributor Loading…
1
refactor: rename Function.swap
#42282 opened Jul 30, 2026 by wrenna-robson Collaborator Loading…
1
chore: tweak API for modelWithCornersEuclideanHalfSpace maintainer-merge A reviewer has approved the changed; awaiting maintainer approval. t-differential-geometry Manifolds etc
#42281 opened Jul 30, 2026 by grunweg Contributor Loading…
@scholzhannah
11
chore(Analysis/Seminorm): generalize various lemmas maintainer-merge A reviewer has approved the changed; awaiting maintainer approval. t-analysis Analysis (normed *, calculus)
#42280 opened Jul 30, 2026 by mcdoll Member Loading…
7
feat(Analysis): generalize BLT theorem to locally convex spaces blocked-by-other-PR This PR depends on another PR (this label is automatically managed by a bot) t-analysis Analysis (normed *, calculus) tech debt Tracking cross-cutting technical debt, see e.g. the "Technical debt counters" stream on zulip
#42279 opened Jul 30, 2026 by mcdoll Member • Draft
1 task
2
Nuclear space new-contributor This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
#42278 opened Jul 30, 2026 by mpacholski • Draft
2
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