Beyond Mathlib

The Lean research ecosystem, in one directory.

Browse 636 source-backed Lean ecosystem records from curated repositories and a pinned Reservoir snapshot. Exact Therefore declaration coverage is labelled separately from package and repository discovery.

Reservoir index b6ac225af74c backs 600 directory records. Provider metadata is discovery evidence, not proof verification or authorship.

636 of 636 projects

Package metadataLean library

LeanEVM

A toy implementation of the EVM in Lean4.

Declarations not yet indexedLean 4.8.0-rc2

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

lean-units

lean physical unit system, SI international

Declarations not yet indexedLean 4.24.0

Pinned Reservoir package record · checked 2026-07-25

Math
Package metadataLean library

sal

Multimodal verification of Replicated Data Types in Lean

Declarations not yet indexedLean 4.28.0

Pinned Reservoir package record · checked 2026-07-25

Math
Package metadataProof corpus

cryptography

Lean 4 programming language and theorem prover cryptography experiments

Declarations not yet indexedLean 4.27.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

Coinductive

Co-inductive datatypes for Lean

Declarations not yet indexedLean 4.32.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

sadol

Symbolic and Automatic Differentiation of Languages in Lean

Declarations not yet indexedLean 4.14.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataProof corpus

FormaleSystemeInLean

LEAN4 formalization of the undergraduate lecture "Formale Systeme" at TU Dresden (WIP)

Declarations not yet indexedLean 4.30.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

leanblas

Bindings and specification for BLAS

Declarations not yet indexedLean 4.28.0-rc1

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

vcsp

General-Valued Constraint Satisfaction Problems

Declarations not yet indexedLean 4.18.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataProof corpus

NeuralNetworks

Formalization of Neural Networks in Lean 4

Declarations not yet indexedLean 4.24.0-rc1

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataProof corpus

provenance

Lean4 formalization of some provenance notions

Declarations not yet indexedLean 4.29.1

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

lean4-assert-command

A simple assertion command for Lean4

Declarations not yet indexedLean 4

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataProof corpus

kolmogorov_extension4

Lean formalization of the Kolmogorov extension theorem

Declarations not yet indexedLean 4.31.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

LeanLangur

Expositions and demos for Lean Prover

Declarations not yet indexedLean 4.29.0

Pinned Reservoir package record · checked 2026-07-25

Math
Package metadataLean library

solanalib

⚠️ Experimental | Prototype

Declarations not yet indexedLean 4.31.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

LiterateLean

literate programming for lean4

Declarations not yet indexedLean 4.32.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

GibbsMeasure

ASCI Summer Research Lean

Declarations not yet indexedLean 4.33.0-rc1

Pinned Reservoir package record · checked 2026-07-25

MathMeasure TheoryProbabilityStatistical Physics
Package metadataLean tool

Parse

🧩 | Parser generation for Lean 4.

Declarations not yet indexedLean 4.8.0

Pinned Reservoir package record · checked 2026-07-25

Lean package