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Lean

Lean is a functional programming language that makes it easy to write correct and maintainable code. You can also use Lean as an interactive theorem prover. Lean programming primarily involves defining types and functions. This allows your focus to remain on the problem domain and manipulating its data, rather than the details of programming.

https://github.com/forked-from-1kasper/leanbot

IRC-bot written in Lean (https://leanprover.github.io/)

irc lean leanprover

Last synced: 24 Feb 2025

https://github.com/TOTBWF/lean4-raytrace

A simple raytracer written in lean

lean lean4

Last synced: 22 Jul 2025

https://github.com/FR-vdash-bot/transcendental

Lindemann–Weierstrass Theorem

lean

Last synced: 22 Jul 2025

https://github.com/guilhem/devops-training

DevOps culture training

agile cloud devops hugo lean reveal-js sre

Last synced: 19 Mar 2025

https://github.com/anderssorby/nix.lean

Nix expressions and derivations in lean (in development)

lean lean4

Last synced: 03 Nov 2025

https://github.com/gihanmarasingha/miu_language

A decision procedure for the formal system MIU, written in Lean 3.18.4

decision-procedure lean leanprover miu

Last synced: 28 Feb 2026

https://github.com/paulcadman/raylean

Lean4 bindings for raylib

games-development lean puns raylib

Last synced: 03 May 2025

https://github.com/kassane/lean4-zig

Zig bindings for Lean4

ffi-bindings lean lean-language lean4 zig ziglang

Last synced: 15 Apr 2025

https://github.com/lean-dojo/leandojowebsite

Code for LeanDojo's website

lean lean4 llm machine-learning theorem-proving

Last synced: 16 Jan 2026

https://github.com/seasawher/lean-book

mdbook template for Lean project

lean lean4 mdbook

Last synced: 30 Jun 2025

https://github.com/0art0/lean3-statement-translation-tool

A tool for automatic formalisation of natural language theorem statements to Lean3 code using OpenAI Codex.

codex lean

Last synced: 31 May 2026

https://github.com/arthurpaulino/chrome-lean-unicode

Type Lean unicode characters in your web browser

lean lean4

Last synced: 19 Apr 2025

https://github.com/seasawher/mk-exercise

Simple and intuitive tool to manage exercises in textbooks written in Lean.

lean lean4

Last synced: 30 Jun 2025

https://github.com/jaalonso/calculemus2

Proof exercises in Lean4 and Isabelle/HOL

exercises isabelle-hol lean lean4 math proof-assistant

Last synced: 27 Mar 2025

https://github.com/kiranandcode/lean-aoc

Advent of code in Lean4

advent-of-code lean lean4

Last synced: 07 May 2025

https://github.com/hanwenzhu/miller-rabin

Miller–Rabin primality test in Lean

lean lean4 primality-test theorem-proving

Last synced: 16 Feb 2026

https://github.com/eric-wieser/lean-graded-rings

A formalization of graded rings in Lean, corresponding to a CICM 2022 submission

cicm formal-mathematics lean mathlib

Last synced: 14 Oct 2025

https://github.com/publications-org/papers

Open Access Publications on Mathematics and Computer Science (https://amlal.nekernel.org)

cs lean math papers publications

Last synced: 27 Jun 2026

https://github.com/stangirard/smallest-possible-product

Lean Development, ROI-Focused Platform. SPP Marketplace: collaborate on minimalist, single-purpose apps for optimized results.

app genai lean llm marketplace product roi small

Last synced: 04 Mar 2025

https://github.com/Lix0120/eudoxus

Formalise Eudoxus reals in lean and prove they form a complete Archimedean ordered field.

lean theorem-proving

Last synced: 22 Jul 2025

https://github.com/lean-ja/lean-by-example

Lean の基本的な構文や機能を紹介するためのサンプルコード集です．

lean lean4

Last synced: 27 Mar 2025

https://github.com/uncomputable/natural-number-game

Reimplementation of Natural Number Game in Coq

coq game lean logic solutions theorem-prover

Last synced: 25 Oct 2025

https://github.com/bdfinst/total-perspective-vortex

Value stream mapping is typically very manual and drawing tools are toilsome. This seeks to semi-automate the process.

cd current-reality-diagram devops lean stream-map value-stream-map

Last synced: 15 Feb 2026

https://github.com/hanwenzhu/primality-tests

Miller–Rabin primality test in Lean

lean lean4 primality-test theorem-proving

Last synced: 22 Apr 2025

https://github.com/Seasawher/mk-exercise

Simple and intuitive tool to manage exercises in textbooks written in Lean.

lean lean4

Last synced: 22 Jul 2025

https://github.com/utensil/ginac-lean

A work-in-progress Lean 4 binding to GiNaC

lean lean4

Last synced: 22 Jun 2025

https://github.com/seasawher/import-all

This script can check and auto-generate `import` statements in a lean4 repository.

lean lean4

Last synced: 13 Feb 2026

https://github.com/utensil/formal-land

My monorepo for formalization, e.g. Lean, Aya

lean lean4

Last synced: 22 Jun 2025

https://github.com/appliedfm/growth-data

Measuring the growth of open source formal methods

ada agda appliedfm coq idris isabelle lean tla

Last synced: 25 Oct 2025

https://github.com/fgdorais/extra4

Supplements to the Lean 4 Standard Library

lean lean4

Last synced: 23 Jan 2026

https://github.com/Seasawher/lean-book

mdbook template for lean project

lean lean4 mdbook

Last synced: 22 Jul 2025

https://github.com/keilambda/ttfpi

"Type Theory and Formal Proof: An Introduction" book formalization in Lean

formal-proof formalization lean lean4 type-theory

Last synced: 17 Mar 2026

https://github.com/hagb/lean-groebner

Lean4 formalization of Gröbner basis (WIP)

groebner-basis lean lean4

Last synced: 04 Mar 2025

https://github.com/eric-wieser/mathlib-import-graph

An interactive viewer for the mathlib import graph

lean mathlib

Last synced: 14 Jul 2025

https://github.com/namin/leandisco

Eurisko-Inspired Discovery System for Lean in Lean

ai discovery-system lean metaprogramming proofsketcher

Last synced: 17 Mar 2026

https://github.com/hargonix/crup

A Checker for RUP proofs written in Lean 4

lean lean4 rup sat

Last synced: 22 May 2026

https://github.com/paraseba/conceptual-mathematics-in-lean

Conceptual Mathematics exercises using Lean theorem prover

category-theory lean math

Last synced: 29 Jul 2025

https://github.com/Seasawher/import-all

This script can check and auto-generate `import` statements in a lean4 repository.

lean lean4

Last synced: 22 Jul 2025

https://github.com/will-lynas/lean-snippets.nvim

📐 Neovim snippets for Lean

lean luasnip neovim nvim snippets

Last synced: 06 Feb 2026

https://github.com/alexf91/lean4-ctypes

FFI for Lean 4

ffi lean lean4

Last synced: 23 Oct 2025

https://github.com/hyperpolymath/echidna

Neurosymbolic theorem proving platform with 12 prover backends

agda coq formal-verification hyperpolymath lean neurosymbolic palimpsest rust starred theorem-prover

Last synced: 07 Apr 2026

https://github.com/mbrg/lean-tutorial-reference

A newbie's reference solutions to Lean tutorials

dependent-types lean reference theorem-proving type-theory verification

Last synced: 29 Jun 2025

https://github.com/mjendrusch/monoidal-categories-reboot

monoidal categories in the Lean theorem prover

category-theory lean leanprover theorem-proving

Last synced: 23 Jul 2025

https://github.com/jaalonso/calculemus2_es

Ejercicios de demostración con Lean4 e Isabelle/HOL.

lean lean4 maths proof-assistant

Last synced: 16 Feb 2026

https://github.com/brendanzab/lean_tutorial_exercises

Answers to the exercises in the Lean tutorial

dependent-types exercise-solutions lean

Last synced: 16 Jul 2025

https://github.com/zelosleone/lean-theorems

A repository for studying and implementing Lean theorems, focusing on mathematical and philosophical concepts.

euclidean-geometry formal-verification geometry lean lean4 mathematics philosophical-logic philosophical-mathematics real-analysis theorem-proving theorem-provings topology

Last synced: 10 Mar 2026

https://github.com/swathimystery/software-development-philosophy

Rules for software development. A proven methodology.

lean manifesto philosophy software unix

Last synced: 29 Mar 2025

https://github.com/lean-dojo/leanprogress

Guiding Search for Neural Theorem Proving via Proof Progress Prediction

formal-mathematics lean lean4 llm machine-learning progress-prediction proof-search rl theorem-proving

Last synced: 16 Jan 2026

https://github.com/atticuskuhn/proofs-from-the-book

Proofs from THE BOOK by Aigner and Ziegler proved in the Lean proving assistant

formal-verification lean proof proof-assistant

Last synced: 12 Apr 2025

https://github.com/gift-framework/core

GIFT Core: Certified mathematical identities from E8×E8 gauge theory on G2 manifolds. Verified in Lean 4

coq coq-formalization e8 formal-verification g2-holonomy gauge-theory lean lean4 mathematics proof-assistant python

Last synced: 17 May 2026

https://github.com/shilangyu/formal-lang

A formal definition of a language accompanied by proofs of its properties.

formal-verification lean memory-safety programming-language-theory stainless

Last synced: 14 Mar 2025

https://github.com/PaulioRandall/template-sveltekit

A minimalist Sveltekit template with Prettier & P69. Made to be plundered.

lean minimal minimalist mit-license p69 prettier svelte sveltejs sveltekit template vite webapp website

Last synced: 06 Aug 2025

https://github.com/alexf91/ltest

A unit testing framework for Lean 4

lean lean4 unit-testing unittest

Last synced: 22 Sep 2025

https://github.com/pre63/couillard

Couillard is a small trebuchet you aim and launch at your users.

a-b-testing abtesting design-thinking lean user-experience

Last synced: 18 Apr 2026

https://github.com/claby2/axiomatic-set-theory

∃∀ Formalizing Enderton's "Elements of Set Theory" in Lean

enderton lean set-theory

Last synced: 17 Feb 2026

https://github.com/spamegg1/spamegg1-lean

Working through Functional Programming in Lean

dependent-types formal-verification functional-programming lean lean4 math proofs

Last synced: 02 Jan 2026

https://github.com/fadoss/maude2lean

Maude to Lean translator

lean maude theorem-proving

Last synced: 24 Dec 2025

https://github.com/inaciovasquez2020/flagship-lean

Lean4 flagship repository for the Unified Rigidity Framework. Canonical module layout, invariant-first design, and CI-stable proof skeletons used across URF projects.

complexity formal-verification invariants lean lean4 logic mathlib proof-assistant rigidity theoretical-computer-science urf

Last synced: 07 Mar 2026

https://github.com/jaalonso/calculemus

Ejercicios de demostración con Lean e Isabelle/HOL.

isabelle lean

Last synced: 06 Oct 2025

https://github.com/bhgomes/jensen

a Lean implementation of Jensen's Inequality

jensen-inequality lean lean-theorem-prover leanprover

Last synced: 24 Oct 2025

https://github.com/leantechnologies/link-ios-demo-application

A small demo application that showcases Lean's LinkSDK methods - and practical application of the methods in SwiftUI.

api finance ios lean open-banking sdk

Last synced: 23 Feb 2026

https://github.com/szymonkubica/formalising-mathematics

Formal proofs of mathematical analysis theorems using Lean programming language

analysis lean mathematics

Last synced: 25 Jun 2026

https://github.com/jroesch/lean.js

An example of using Lean's backend API to implement a new language backend.

compiler javascript lean programming-language

Last synced: 20 May 2026

https://github.com/verse-lab/veil-usage-example

A template repository with an example of using Veil verifier as a Lean library.

lean smt verification

Last synced: 30 Jan 2026

https://github.com/forked-from-1kasper/lambda

Untyped lambda calculus implemented in Lean

lambda-calculus language lean

Last synced: 24 Feb 2025

https://github.com/andreadlm/master-thesis

A LEAN-certified reversibilization of Meyer-Ritchie LOOP language. Master thesis in computer science.

lean lean4 programming-languages reversible-computation

Last synced: 31 Jan 2026

https://github.com/usc-fall-2024-math-587/homework1

Substitution ciphers

crytography latex lean math

Last synced: 01 Feb 2026

https://github.com/szepeviktor/lean-filter

Adblock Plus filter

adblock filter lean ublock-origin

Last synced: 18 May 2026

https://github.com/paulcadman/lean-ios

Build Lean apps for iOS

ios lean lean4

Last synced: 04 Apr 2026

https://github.com/fraware/cta-benchmark

CTA-Bench: research benchmark and toolkit for studying how well systems turn problem descriptions and reference code into Lean 4 proof obligations, and how faithful those obligations are to the intended algorithm.

ai-evaluation autoformalization benchmark evaluation-methodology formal-verification lean program-verification semantic-faithfulness theorem-proving

Last synced: 09 Jun 2026

https://github.com/rzrn/lambda

Untyped lambda calculus implemented in Lean

lambda-calculus language lean

Last synced: 17 Jun 2026

https://github.com/fractalate/study-munkres-topology

Munkres Topology in Lean

lean lean4 mathematics topology

Last synced: 04 Feb 2026

https://github.com/eric-wieser/divf-2022

CUED division F conference presentation

lean mathlib presentation sympy

Last synced: 26 Mar 2025

https://github.com/sunsided/lean4-playground

Toying around with Microsoft Lean 4

interactive-proofs lean

Last synced: 29 Apr 2026

https://github.com/nktkt/leanpp

Kernel-safe upper-compatible proof-engineering layer over Lean 4. spec def, concept, refines, obligations, proofplan, trust ledger.

formal-verification lean lean4 proof-assistant proof-engineering theorem-proving verified-software-engineering

Last synced: 29 Apr 2026

https://github.com/seasawher/lean-quiz-template

Lean でクイズを出題するためのテンプレート. lean_grader を使用して自動採点を行います．開発中．

autograding lean lean4 theorem-prover

Last synced: 30 Jun 2025

https://github.com/griffio/yadalean01

yada/yada lean

lean rest-api yada

Last synced: 16 May 2026

https://github.com/shilangyu/foundations_of_software_projects

Formalization projects for the Foundation of Software course at EPFL

epfl fos lean lean4 theorem-proving

Last synced: 11 Feb 2026

https://github.com/santoshlite/quantconnectvscode

A Visual Studio theme based on QuantConnect's design

json lean quantconnect theme theme-development vscode

Last synced: 12 May 2026

https://github.com/ejgallego/imp-lab

Lean playground for programming language modeling tooling.

dap formal-methods formal-verification functional-programming lean lean4 lsp tooling ux-research

Last synced: 09 Mar 2026

Lean Awesome Lists
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Lean Categories
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