This is Reservoir, the registry for all Lean packages and documentation.

Reservoir indexes, builds, and tests packages within the Lean and Lake ecosystem. If you wish to see your package here, ensure that it meets the Reservoir inclusion criteria.

Most Popular

  1. Commit 83b9f16 builds on the recent leanprover/lean4:v4.35.0-rc1
    mathlib
    The math library of Lean 4
  2. Commit f9e8bc5 builds on the recent leanprover/lean4:v4.34.0-rc2
    NavierStokesAndEuler
    Lean certificates accompanying Navier-Stokes and Euler results
  3. Commit 245b2e1 builds on the old leanprover/lean4:v4.29.0-rc8
    Analysis
    A Lean companion to Analysis I
  4. Commit 4c0618b fails to build on leanprover/lean4:v4.34.0
    ryu
    Converts floating point numbers to decimal strings
  5. Commit a303359 builds on the recent leanprover/lean4:v4.34.0
    LeanCopilot
    LLMs as Copilots for Theorem Proving in Lean
  6. Commit 24984cb builds on the recent leanprover/lean4:v4.33.1
    formal_conjectures
    A collection of formalized statements of conjectures in Lean.
  7. Commit 4342055 builds on the recent leanprover/lean4:v4.34.0
    FLT
    Ongoing Lean formalisation of the proof of Fermat's Last Theorem
  8. Commit 891d597 builds on the old leanprover/lean4:v4.33.0
    Physlib
    A project to digitalise results from physics into Lean.
  9. Commit 41094e5 builds on the recent leanprover/lean4:v4.35.0-rc2
    cslib
    The Lean Computer Science Library (CSLib)
  10. Commit dd6d752 builds on the old leanprover/lean4:v4.30.0
    mil
    The user home repository for the Mathematics in Lean tutorial.

Newly Created

  1. Commit 035e9b0 fails to build on leanprover/lean4:v4.34.0
    nsLean
    Lean 4 proof that Naslund's Conjecture 13 fails at q = 3: square-difference-free subsets of F_3[T] past 3^(3n/4)
  2. Commit c0a7d9f fails to build on leanprover/lean4:v4.34.0
    xRayLean
    Lean proofs of constructive binary X-ray families, counting bounds, and an extension theorem
  3. Commit c235f7c builds on the recent leanprover/lean4:v4.34.0
    waterfall
    Small, configurable proof search for inductive Lean goals
  4. Commit f9e8bc5 builds on the recent leanprover/lean4:v4.34.0-rc2
    NavierStokesAndEuler
    Lean certificates accompanying Navier-Stokes and Euler results
  5. Commit a26427e builds on the old leanprover/lean4:v4.32.0-rc1
    kakeya
  6. Commit 9ecf082 builds on the old leanprover/lean4:v4.30.0
    pcfAlephOmega4
    A Lean 4 formalization of the PCF bound 2^aleph_omega < aleph_(omega_4) under the strong-limit hypothesis.
  7. Commit 09b97db builds on the old leanprover/lean4:v4.33.0-rc1
    goldbach
    A Lean 4 formalization of Chen's theorem (Goldbach 1+2).
  8. Commit c02708a builds on the old leanprover/lean4:v4.28.0
    Erdos548
    Lean 4 Erdős problem #548 (Erdős–Sós conjecture): proof, found by GPT-6 Astra in the FrontierMath Erdős benchmark
  9. Commit ed6ab14 builds on the recent leanprover/lean4:v4.34.0-rc2
    dLean
  10. Commit 0296972 fails to build on leanprover/lean4:v4.34.0-rc2
    LocalComplexGeometry
    Foundational theorems in local complex-analytic geometry formalized in Lean 4

Recently Updated

  1. Commit cad9de3 builds on the recent leanprover/lean4:v4.34.0-rc2
    TauCeti
    An AIs-welcome Lean library downstream of Mathlib: AI handle the implementation and review, humans write the roadmaps and review rubrics
  2. Commit 1aec8a7 builds on the old leanprover/lean4:v4.29.1
    equational_theories
    A project to map out the relations between different equational theories of Magmas.
  3. Commit 7d02726 builds on the recent leanprover/lean4:v4.34.0
    PolyFun
    Lean 4 library for polynomial functors, interaction trees, and frameworks for modeling interactive and effectful protocols
  4. Commit b364d45 builds on the recent leanprover/lean4:v4.34.0
    linglib
    A Lean 4 library for formal linguistics: semantics, syntax, pragmatics, morphology, phonology, and processing — formalized across competing frameworks for high interconnection density.
  5. Commit c235f7c builds on the recent leanprover/lean4:v4.34.0
    waterfall
    Small, configurable proof search for inductive Lean goals
  6. Commit 83b9f16 builds on the recent leanprover/lean4:v4.35.0-rc1
    mathlib
    The math library of Lean 4
  7. Commit 41094e5 builds on the recent leanprover/lean4:v4.35.0-rc2
    cslib
    The Lean Computer Science Library (CSLib)
  8. Commit 0803c2f builds on the old leanprover/lean4:v4.33.0
    PrimeCert
    Formal prime certificates in Lean 4
  9. Commit 66b3ce5 builds on the old leanprover/lean4:v4.18.0
    verina
    Verina (Verifiable Code Generation Arena) is a high-quality benchmark enabling a comprehensive and modular evaluation of code, specification, and proof generation as well as their compositions.
  10. Commit 6eee2ec builds on the recent leanprover/lean4:v4.34.0
    sparkle
    A type-safe, formally verifiable HDL compiler in Lean 4. Inspired by Clash, built for high-assurance hardware synthesis.