mathlib
The math library of Lean 4
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plausible
v4.19.0-rc2
LeanSearchClient
2507836
Syntax for searching with natural language from Lean, using https://leansearch.net/ (may extend to other services)importGraph
v4.19.0-rc2
Tools to analyse and visualise the import structure of Lean packages and their files.proofwidgets
v0.0.56
Helper toolkit for creating your own Lean 4 UserWidgetsaesop
323e9f0
White-box automation for Lean 4Qq
v4.19.0-rc2
Intuitive, type-safe expression quotations for Lean 4.batteries
f523fcb
The "batteries included" extended library for the Lean programming language and theorem prover