Lean Lean

Top 3 Lean Lean Projects

  • lean4

    Lean 4 programming language and theorem prover

    Project mention: Where does "def" for functions come from and why? | reddit.com/r/ProgrammingLanguages | 2023-01-21

    Lean is another language that uses the def keyword, but they use it as a more general "give this term a name" rather than "make a function" ``` -- constant definition def five : ℕ := 5

  • mathlib

    Lean mathematical components library

    Project mention: Lean – Theorem Prover | news.ycombinator.com | 2023-01-20

    I think they end up similar. Although Lean 3 is much more geared towards writing proofs with the addition of mathlib [0] which aims to be a library of formalized mathematics.

    [0] https://github.com/leanprover-community/mathlib

  • SonarLint

    Clean code begins in your IDE with SonarLint. Up your coding game and discover issues early. SonarLint is a free plugin that helps you find & fix bugs and security issues from the moment you start writing code. Install from your favorite IDE marketplace today.

  • hott3

    HoTT in Lean 3

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-01-21.

Lean Lean related posts


What are some of the best open-source Lean projects in Lean? This list will help you:

Project Stars
1 lean4 2,047
2 mathlib 1,420
3 hott3 70
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