Formally proving the security of Fast Reed-Solomon interactive oracle proofs of proximity

Blueprint for the PNT+ Project

A verifier for automated and interactive proofs about transition systems.

A prototype for a monadic program logic in Lean that has since been upstreamed into the Lean 4 repo

SampCert : Verified Differential Privacy

Formalizing stochastic doubly-efficient debate

Lean theorem proving interface which feels like pen-and-paper proofs.

Server to host Lean games

Lean 4 kernel / 'external checker' written in Lean 4

Tactics for discharging Lean goals into SMT solvers.

Python library for the Zulip API.

Zulip Desktop client for Mac, Windows and Linux.

Legacy Zulip mobile apps for Android and iOS

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

Lean 3 material for Kevin Buzzard's 2021 TCC courrse on formalising mathematics. Lean 4 version available here: https://github.com/ImperialCollegeLondon/formalising-mathematics-2024

An implementation of Snakebird in Lean.

Lean 3's obsolete mathematical components library: please use mathlib4

Lean 4 programming language and theorem prover

Emacs major mode for Lean 4

Cryptographic routines for the Lean 4 language

Basic Http functionality in Lean (unfinished)

A simple assertion command for Lean4

A Lean 4 library for iterators.

WIP unofficial package registry of Lean 4

SDL2 bindings for lean