leanprover-community

mathlib

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

mathlib4

The math library of Lean 4

batteries

The "batteries included" extended library for the Lean programming language and theorem prover

mathematics_in_lean

The user home repository for the Mathematics in Lean tutorial.

lean4-metaprogramming-book

aesop

White-box automation for Lean 4

lean4game

Server to host lean games.

ProofWidgets4

Helper toolkit for creating your own Lean 4 UserWidgets

NNG4

Natural Number Game

quote4

Intuitive, type-safe expression quotations for Lean 4.

lean-auto

Experiments in automation for Lean

lean4web

The Lean 4 web editor

con-nf

A formal consistency proof of Quine's set theory New Foundations

lean4-mode

Emacs major mode for Lean 4

repl

A simple REPL for Lean 4, returning information about errors and sorries.

leanprover-community.github.io

Hosts the website for mathlib and other Lean community infrastructure.

flt-regular

Fermat's Last Theorem for regular primes

duper

mathport

Mathport is a tool for porting Lean3 projects to Lean4

sphere-eversion

Formalization of the existence of sphere eversions

tutorials4

Lean 4 tutorial files

leancrawler

An obsolete python library which gathers statistics and relational information about Lean 3 libraries.

mathlib3port

Synport output from mathport for mathlib3

blog

Source for the community blog

highlightjs-lean

A highlight.js language grammar for the Lean theorem proving language.

import-graph

Tool to analyse the import structure of lean projects.

mathlib4_docs

byte-slice

lean3port

Stub for downloading mathport artifacts for Lean 3

mathlib_stats

Display gitstats output on the mathlib website