Lean

4.29.1 Apache-2.0 by Lean FRO

Programming Language and Theorem Prover

Install via Winget

winget install Lean.Lean

Open Windows Terminal or PowerShell and run the command above. Winget is built into Windows 10 (1809+) and Windows 11.

About 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. Lean has numerous features, including: - Type inference - First-class functions - Powerful data types - Pattern matching - Type classes - Extensible syntax - Hygienic macros - Dependent types - Metaprogramming framework - Multithreading - Verification: you can prove properties of your functions using Lean itself

Tags

languageprogrammingprogramming-languagetheorem-prover

Frequently Asked Questions

How do I install Lean using winget?
Open Windows Terminal or PowerShell and run: winget install Lean.Lean. Winget is built into Windows 10 (1809+) and Windows 11.
What is Lean?
Programming Language and Theorem Prover
Is Lean free to download?
Lean is available under the Apache-2.0 license. Use the winget command or the direct download link on this page.
How do I update Lean with winget?
Run winget upgrade Lean.Lean in Windows Terminal or PowerShell to update Lean to the latest available version.