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 metadataTeaching project

ntptutorial

Tutorial on neural theorem proving

Declarations not yet indexedLean nightly-2023-06-10

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

Clean

Lean circuit DSL

Declarations not yet indexedLean 4.30.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

doc-gen4

Document Generator for Lean 4

Declarations not yet indexedLean 4.32.1

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

Loom

Loom is a framework for automated generation of foundational multi-modal verifiers. This repository is a mirror with stable snapshots. Submit issues and PRs here.

Declarations not yet indexedLean 4.24.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataProof corpus

llmstep

llmstep: [L]LM proofstep suggestions in Lean 4.

Declarations not yet indexedLean 4.1.0

Pinned Reservoir package record · checked 2026-07-25

LlmTheorem Proving
Package metadataLean library

yatima

A zero-knowledge Lean4 compiler and kernel

Declarations not yet indexedLean nightly-2023-01-10

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

render

A simple raytracer written in Lean 4

Declarations not yet indexedLean 4.8.0-rc1

Pinned Reservoir package record · checked 2026-07-25

Raytracing
Package metadataLean tool

loogle

Mathlib search tool

Declarations not yet indexedLean 4.30.0-rc1

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

verbose

Natural language tactics to teach mathematics using Lean 4

Declarations not yet indexedLean 4.31.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

lib

LeanEuclid is a benchmark for autoformalization in the domain of Euclidean geometry, targeting the proof assistant Lean.

Declarations not yet indexedLean 4.19.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Exact source indexedLean library

quantumInfo

Quantum information theory in Lean 4

115 indexed declarationsLean 4.28.0

Pinned Reservoir package record · checked 2026-07-25

braketbundledcapacitydistribution
Package metadataLean tool

Canonical

A Lean tactic for Canonical, a search procedure for terms in dependent type theory.

Declarations not yet indexedLean 4.32.0-rc1

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataProof corpus

matrix_cookbook

The matrix cookbook, proved in the Lean theorem prover

Declarations not yet indexedLean 4.22.0-rc4

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean tool

jixia

A static analysis tool for Lean 4.

Declarations not yet indexedLean 4.29.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataTeaching project

FormalisingMathematics2026

Course notes for Formalising Mathematics 2026

Declarations not yet indexedLean 4.26.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

verso-manual

The Lean reference manual

Declarations not yet indexedLean 4.32.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Package metadataLean library

ZeroToQED

From Zero to QED: An informal introduction to formality with Lean 4

Declarations not yet indexedLean 4.30.0

Pinned Reservoir package record · checked 2026-07-25

Lean package
Exact source indexedLean library

debate

Formalizing stochastic doubly-efficient debate

52 indexed declarationsLean 4.8.0

Pinned Reservoir package record · checked 2026-07-25

arithbasicbasicschernoff