Generated from every Lean source module
Declaration catalog
10,434 indexed public and private declarations. The catalog is exhaustive for the supported declaration kinds; teaching chapters add detailed explanations to the major mathematical interfaces.
Search and filter
Showing the first 20 of 10,434 declarations.
How a concept search connects to reusable Lean
Every search result links to its exact statement, source location, module context, chapter explanation, and recorded dependency neighborhood.
flowchart LR
Search["Search a mathematical concept"] --> Decl["Exact Lean declaration"]
Decl --> Statement["Statement + namespace + source line"]
Decl --> Module["Owning module"]
Module --> Imports["Imported prerequisites"]
Decl --> Consumers["Downstream declarations"]
Statement --> Chapter["Teaching explanation in Book Map"]
Chapter --> Map["Implementation status and missing obligations"]