leanprover-community / mathlib4
The math library of Lean 4
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The math library of Lean 4
A collection of formalized statements of conjectures in Lean.
Lean 4 programming language and theorem prover
A game introducing proofs, dependent type theory, and Lean prepared for a first year seminar course at Johns Hopkins in Fall 2025.
WIP collections library for Lean 4
The "batteries included" extended library for the Lean programming language and theorem prover
The Lean Computer Science Library (CSLib)
White-box automation for Lean 4
Syntax for searching with natural language from Lean, using https://leansearch.net/ (may extend to other services)
Intuitive, type-safe expression quotations for Lean 4.