std4

Work in progress standard library for Lean 4. This is a collection of data structures and tactics intended for use by both computer-science applications and mathematics applications of Lean 4.

Build instructions

• Get the newest version of elan. If you already have installed a version of Lean, you can run

  elan self update
  
  If the above command fails, or if you need to install elan, run

  curl https://raw.githubusercontent.com/leanprover/elan/master/elan-init.sh -sSf | sh
  
  If this also fails, follow the instructions under Regular install here.
• To build std4 run lake build. To build and run all tests, run make.
• If you added a new file, run the following command to update Std.lean:

  find Std -name "*.lean" | env LC_ALL=C sort | sed 's/\.lean//;s,/,.,g;s/^/import /' > Std.lean
  
  (or use scripts/updateStd.sh which contains this command).