···4848# Install Lean 3
4949brew install elan mathlibtools
5050# Need to use HomeBrew for Rosetta if on M1
5151+# See https://leanprover-community.github.io/install/macos.html#m1-macs--apple-silicon
5152# /usr/local/bin/brew install elan mathlibtools
5253elan toolchain install stable
5354elan default stable