Issues · leanprover-community/mathlib4 · GitHub

Labels Milestones New issue

Add global pull lemmas

#40183

· grunweg opened

on Jun 3, 2026

False positive in `linter.style.docString.empty` when using `declModifiers` in syntax quotation patterns

#40087

· jeangud opened

on Jun 1, 2026

New tool for splitting up mathlib

#40065

· jmikedupont2 opened

on May 31, 2026

Add `PDecidable` (like `Decidable`, but allows arbitrary sorts so it can hold data)

#39751

· srghma opened

on May 23, 2026

Algebraic graph theory formalisation: Sabidussi, Lorimer, and the G₂(2) ecosystem

#39717

· RaggedR opened

on May 22, 2026

Umbral calculus formalisation: finite operator calculus and Rota's classification

#39712

· RaggedR opened

on May 22, 2026

Use `Is*Apply` classes

#39639

· mcdoll opened

on May 21, 2026

SetRel: Examples don't show why `α → β → Prop` is worse than `SetRel α β`

#39397

· OrfeasLitos opened

on May 14, 2026

Nonexistent `SetRel.map` in example

#39396

· OrfeasLitos opened

on May 14, 2026

API development for `LanguageOn` in symbolic dynamics

#39252

· Sfgangloff opened

on May 12, 2026

Formalization of various notions of convergence

#39125

· LLyaudet opened

on May 9, 2026

Feature Request: Schur complement for block matrices and singular value bounds

#38808

· rnoisil-prog opened

on May 1, 2026