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 84e433e builds on the recent leanprover/lean4:v4.34.0
    LeanCopilot
    LLMs as Copilots for Theorem Proving in Lean
  6. Commit 40e7c98 builds on the recent leanprover/lean4:v4.33.1
    formal_conjectures
    A collection of formalized statements of conjectures in Lean.
  7. Commit 81d8bee builds on the recent leanprover/lean4:v4.34.0-rc2
    FLT
    Ongoing Lean formalisation of the proof of Fermat's Last Theorem
  8. Commit de0d13b builds on the old leanprover/lean4:v4.33.0
    Physlib
    A project to digitalise results from physics into Lean.
  9. Commit 012cc2f builds on the recent leanprover/lean4:v4.35.0-rc1
    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 f9e8bc5 builds on the recent leanprover/lean4:v4.34.0-rc2
    NavierStokesAndEuler
    Lean certificates accompanying Navier-Stokes and Euler results
  2. Commit a26427e builds on the old leanprover/lean4:v4.32.0-rc1
    kakeya
  3. 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.
  4. Commit 09b97db builds on the old leanprover/lean4:v4.33.0-rc1
    goldbach
    A Lean 4 formalization of Chen's theorem (Goldbach 1+2).
  5. Commit 82ffb75 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; Palomar submission repository
  6. Commit ed6ab14 builds on the recent leanprover/lean4:v4.34.0-rc2
    dLean
  7. Commit 0296972 fails to build on leanprover/lean4:v4.34.0-rc2
    LocalComplexGeometry
    Foundational theorems in local complex-analytic geometry formalized in Lean 4
  8. Commit 6ac1d73 builds on the old leanprover/lean4:v4.33.0
    eggshell
    Local memory for Codex. Reuse work across chats without LLM calls to organize it.
  9. Commit 38f5a43 builds on the old leanprover/lean4:v4.33.0
    langlib
    Esoteric Programming Languages, Formally
  10. Commit 4e79656 builds on the old leanprover/lean4:v4.33.0
    FsFormal
    Palomar-ready Lean formalization of an improved Furstenberg-Sarkozy lower bound

Recently Updated

  1. Commit 4e27c1f 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.
  2. Commit ea2394c 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
  3. Commit ecddef9 builds on the recent leanprover/lean4:v4.35.0-rc1
    verso-manual
    The Lean reference manual
  4. Commit f9e8bc5 builds on the recent leanprover/lean4:v4.34.0-rc2
    NavierStokesAndEuler
    Lean certificates accompanying Navier-Stokes and Euler results
  5. Commit d237e2e builds on the recent leanprover/lean4:v4.33.1
    VCVio
    Machine-checked cryptographic proofs in Lean, built on Mathlib: oracle computations, probability semantics, program logic, and lattice- and hash-based schemes.
  6. Commit cf77c95 builds on the recent leanprover/lean4:v4.33.1
    ix
    a zero-knowledge proof-carrying code protocol for Lean 4
  7. Commit 2348446 builds on the recent leanprover/lean4:v4.33.1
    PolyFun
    Lean 4 library for polynomial functors, interaction trees, and frameworks for modeling interactive and effectful protocols
  8. Commit 83b9f16 builds on the recent leanprover/lean4:v4.35.0-rc1
    mathlib
    The math library of Lean 4
  9. Commit 10930f8 builds on the recent leanprover/lean4:v4.35.0-rc2
    importGraph
    Tools to analyse and visualise the import structure of Lean packages and their files.
  10. Commit 0803c2f builds on the old leanprover/lean4:v4.33.0
    PrimeCert
    Formal prime certificates in Lean 4