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Pull requests: leanprover-community/mathlib4

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Pull requests list

feat(AlgebraicTopology/SimplicialSet/Subcomplex): add Subcomplex.unionProd, a union of products of subcomplexes awaiting-CI This PR does not pass CI yet. This label is automatically removed once it does. t-algebraic-topology Algebraic topology t-category-theory Category theory
#37182 opened Mar 25, 2026 by mckoen Loading…
1
chore: golf obtain/have + subst into rfl patterns
#37181 opened Mar 25, 2026 by ldct • Draft
1
feat(Combinatorics/SimpleGraph): add lemmas about left and right elements of SimpleGraph.sum t-combinatorics Combinatorics
#37179 opened Mar 25, 2026 by IvanRenison Loading…
1
chore(LinearAlgebra/Matrix): generalize equivs and use where t-algebra Algebra (groups, rings, fields, etc)
#37178 opened Mar 25, 2026 by SnirBroshi Loading…
1
perf: add SMul shortcut instances
#37177 opened Mar 25, 2026 by JovanGerb • Draft
4
chore(GroupTheory/Nilpotent): move declarations into namespace t-algebra Algebra (groups, rings, fields, etc) t-group-theory Group theory
#37175 opened Mar 25, 2026 by tb65536 Loading…
1
chore(GroupTheory/ResiduallyFinite): to_additivize some theorems t-algebra Algebra (groups, rings, fields, etc) t-group-theory Group theory
#37174 opened Mar 25, 2026 by tb65536 Loading…
1
chore(NumberTheory/RamificationInerta/Basic): split file ready-to-merge This PR has been sent to bors. t-algebra Algebra (groups, rings, fields, etc) t-number-theory Number theory (also use t-algebra or t-analysis to specialize) t-ring-theory Ring theory
#37173 opened Mar 25, 2026 by tb65536 Loading…
4
feat(Analysis): add resolvent derivatives in the algebra component
#37172 opened Mar 25, 2026 by DavidLedvinka Loading…
2
chore(Data/Int/Init): generalize le_induction from Prop to Sort* t-data Data (lists, quotients, numbers, etc)
#37171 opened Mar 25, 2026 by SnirBroshi Loading…
3
feat(RingTheory/Artinian/Module): add pow version of quotNilradicalEquivPi large-import Automatically added label for PRs with a significant increase in transitive imports t-algebra Algebra (groups, rings, fields, etc) t-ring-theory Ring theory
#37170 opened Mar 25, 2026 by tb65536 Loading…
2
ci: add permissions to rm_set_option.yml CI Modifies the continuous integration setup or other automation easy < 20s of review time. See the lifecycle page for guidelines.
#37169 opened Mar 25, 2026 by bryangingechen Loading…
1
chore(CategoryTheory): dsimp the apply lemmas in the monoidal structure on types t-category-theory Category theory
#37168 opened Mar 25, 2026 by dagurtomas Loading…
3
feat(CategoryTheory/Monoidal): use to_additive for monoid objects t-category-theory Category theory
#37167 opened Mar 25, 2026 by joelriou Loading…
1
chore: use deriving and inferInstanceAs in tensor products
#37166 opened Mar 25, 2026 by sgouezel Loading…
8
chore(Combinatorics): avoid lazy continuation lines documentation Improvements or additions to documentation maintainer-merge A reviewer has approved the changed; awaiting maintainer approval.
#37165 opened Mar 25, 2026 by harahu Loading…
3
chore(Logic): deprecate forall_swap and exists_swap
#37164 opened Mar 25, 2026 by Vierkantor Loading…
1
chore: missing fast_instance
#37162 opened Mar 25, 2026 by sgouezel Loading…
1
feat(Analysis/Normed/Module): add bornology and T2 instances for WeakSpace 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) new-contributor This PR was made by a contributor with at most 5 merged PRs. Welcome to the community!
#37161 opened Mar 25, 2026 by mike1729 • Draft
1 task
3
feat: product of Coxeter matrices t-group-theory Group theory
#37160 opened Mar 25, 2026 by vihdzp Loading…
1
chore: rename CoxeterMatrix.Aₙ → CoxeterMatrix.A
#37159 opened Mar 25, 2026 by vihdzp Loading…
1
chore(GroupTheory/Coxeter/Length): deprecate redundant theorems merge-conflict The PR has a merge conflict with master, and needs manual merging. (this label is managed by a bot)
#37155 opened Mar 25, 2026 by vihdzp Loading…
2
chore(Dynamics): avoid lazy continuation lines documentation Improvements or additions to documentation maintainer-merge A reviewer has approved the changed; awaiting maintainer approval.
#37151 opened Mar 25, 2026 by harahu Loading…
3
chore(Data/NNReal): clean up instances t-data Data (lists, quotients, numbers, etc)
#37149 opened Mar 25, 2026 by JovanGerb Loading…
4
chore(Combinatorics/SimpleGraph): fix order diamonds t-combinatorics Combinatorics
#37148 opened Mar 25, 2026 by JovanGerb Loading…
6
ProTip! Exclude everything labeled bug with -label:bug.