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@@ -20,15 +20,15 @@ For the Lean 3 version, see [github.com/leanprover-community/mathematics_in_leanDo the following: 1. Install Lean 4 and VS Code following these [instructions](https://github.com/leanprover/lean4/blob/master/doc/quickstart.md). It isn't enough just to install the Lean 4 extension; make sure you complete the steps so that Lean 4 and elan are installed. 2. Make sure you have [git](https://git-scm.com/) installed. 1. Make sure you have [git](https://git-scm.com/) installed. In a terminal, navigate to the folder where you want to put a copy of the repository, and type `git clone https://github.com/avigad/mathematics_in_lean_source.git` repository, and type `git clone https://github.com/leanprover-community/mathematics_in_lean.git` to fetch it from github. 2. If you haven't done it already, install Lean 4 and VS Code following the "regular install" section of these [instructions](https://leanprover-community.github.io/get_started.html#regular-install). It isn't enough just to install the Lean 4 extension for VSCode; make sure you complete the steps so that Lean 4 and elan are installed. 3. Navigate to `mathematics_in_lean`, and execute `lake exe cache get` to fetch a compiled version of the library, `Mathlib`.
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