# The Lean standard library This directory contains development information about the Lean standard library. The user-facing documentation of the standard library is part of the [Lean Language Reference](https://lean-lang.org/doc/reference/latest/). Here you will find * the [standard library vision document](./vision.md), including the call for contributions, * the [standard library style guide](./style.md), and * the [standard library naming conventions](./naming.md).