Lean
software for interactive and automated theorem proving
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Summary
Lean is an open-source software[1]. Lean ranks in the top 2% of open source software entities by monthly Wikipedia readership (32,271 views/month).[2]
Key Facts
- Award received: Programming Languages Software Award[3]
- Influenced by: Rocq prover[4], Isabelle[5]
- Instance of: proof assistant[6], programming language[7]
- Developer: Microsoft Research[8], Leonardo de Moura[9]
- Copyright license: Apache Software License 2.0[10]
- Programmed in: C[11], C++[12], Lean[13]
- Designed by: Leonardo de Moura[14]
- Operating system: cross-platform[15]
- Software version identifier: 3.0.0[16], 3.1.0[17], 3.2.0[18], 3.3.0[19], 3.4.0[20], 3.4.1[21], 3.4.2[22], 4.0.0[23], 4.1.0[24], 4.2.0[25], 4.3.0[26], 4.4.0[27], 4.5.0[28], 4.6.0[29]
- Has use: automated theorem proving[30]
- Platform: cross-platform[31]
- Language of work or name: English[32]
- Inception: 2013[33]
- Publication date: 2013[34]
- Official website: https://lean-lang.org/[35]
- Described at URL: http://www.andrew.cmu.edu/user/avigad/Papers/lean_system.pdf[36]
- Readable file format: Lean 3 file format[37], Lean 4 file format[38]
Why It Matters
Lean has Wikipedia articles in 14 language editions, a strong signal of global cultural recognition.[39] Lean is known by 7 alternative names across languages and contexts.[40]
Lean has been cited as an influence by F*[41], a programming language[42].
FAQs
What awards did Lean receive?
Honors received include Programming Languages Software Award[3].
Who did Lean influence?
Lean has been cited as an influence by F*[41].