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

The math library of Lean 4

Lean certificates accompanying Navier-Stokes and Euler results

A Lean companion to Analysis I

Converts floating point numbers to decimal strings

LLMs as Copilots for Theorem Proving in Lean

A collection of formalized statements of conjectures in Lean.

Ongoing Lean formalisation of the proof of Fermat's Last Theorem

A project to digitalise results from physics into Lean.

The Lean Computer Science Library (CSLib)

Web user interfaces written in Lean 4, compiled to WebAssembly (Memory64), with a native Lean server for SSR

A proof of Erdős Problem #173.

λProlog inside Lean 4: write tactics, commands and proof search as logic programs, share types with Lean both ways, and get kernel-checked proofs.

Explicit persistent failure of Euclidean quartic sum-of-squares exactness, formalized in Lean.

Matrix multiplication over rings through integer coefficient schemes

A 7-vertex tournament whose Sperner capacity exceeds the order of its largest transitive subtournament (Lean 4, kernel-only)

Planar Euclidean dual-geodesic midpoint rigidity

The Complex Number Game, ported to Lean 4

Lean 4 formalization of the flashlight transformation of copulas (Onken et al., PLoS Comput Biol 2009)

λProlog inside Lean 4: write tactics, commands and proof search as logic programs, share types with Lean both ways, and get kernel-checked proofs.

Formally verified domain-specific invariants in Lean 4: DeFi, quantum information, cryptography, and distributed systems

A library for discovering truth: questions, computation, reusable proofs, and an open frontier.

Human-controlled roadmaps for Tau Ceti, an AIs-welcome Lean library downstream of Mathlib.

The matrix cookbook, proved in the Lean theorem prover

The Lean reference manual

Tensor-network theory, formalized in Lean 4: the fundamental theorem of matrix product states, canonical forms, parent Hamiltonians, matrix-product density operators, and projected entangled pair states, building on the QICLean quantum-information library

Combinatorial game library in Lean 4

Formally Verified Arguments of Knowledge in Lean