Lean binary distribution ------------------------ The binary distribution package contains: - Lean executable (located in the sub-directory bin) - Standard library (located in the sub-directory lib/lean/library) - HoTT library (located in the sub-directory lib/lean/hott) - Emacs modes (located in the sub-directory share/emacs/site-list/lean) Assuming you are in the same directory this file is located, the following command executes a simple set of examples % bin/lean examples/ex.lean The Emacs mode is the ideal way to use Lean. It requires at least Emacs version 24.3 Command line options -------------------- Here are some useful commands for users that do not want to use Emacs, or prefer command line tools. - `-T` do not type check imported .olean files % bin/lean -T examples/ex.lean The option can save you a significant amount of time if you are importing many files. Lean still checks the check-sum of the imported files. So, it still can detect trivial tempering of the .olean files. - `-c [file.clean]` create/use a cache file. This option can increase the compilation time of large files when we are invoking Lean many times with small incremental changes. % bin/lean -c ex.clean examples/ex.lean - `--deps` display files imported by a given Lean file. This option is useful if you want to build your own custom Makefile. % bin/lean --deps examples/ex.lean