Lean Tutorial

• Web : https://leanprover.github.io/tutorial
• PDF : https://leanprover.github.io/tutorial/tutorial.pdf

How to Build

We use cask to install emacs dependencies (org-mode, lean-mode, htmlize) and pygments and minted to syntax-highlight Lean code in LaTeX. We assume that you already have emacs-24.3 or higher installed in your system.

sudo apt-get install mercurial python2.7 texlive-latex-recommended \
                     texlive-humanities texlive-xetex texlive-science \
                     texlive-latex-extra texlive-fonts-recommended \
                     bibtex2html git make mercurial autoconf automake gcc
git clone https://github.com/leanprover/tutorial
cd tutorial
tar xvfz header/l3kernel.tar.gz -C ~/
make install-cask # after this, you need to add the cask binary to your $PATH
make install-pygments  
make

Automatic Build using Watchman

Using watchman, we can detect any changes on the org-files, and trigger re-builds automatically on the background.

To install watchman:

sudo apt-get install automake
make install-watchman

To enable watch:

make watch-on

To disable watch:

make watch-off

How to preview generated HTML files

It requires a webserver to preview generated HTML files. We can use Python's SimpleHTTPServer module:

tutorial $ python -m SimpleHTTPServer

The above command starts a HTTP server at tutorial directory (default port: 8000). For example, example.html is available at http://localhost:8000/example.html.

Auto-reload HTML page

• Firefox: Auto Reload add-on

  • Tools > AutoReload Preferences
  • Create Reload Rule
  • Link .html in the filesystem

• Chrome: Tincr (does not work on Linux)

  • Right-click and choose "Inspect Element"
  • Go to "tincr" tab, choose "Http Web Server" for project type, then select Root directory.

Test Lean Code in .org files

First, you need to install Lean. Please follow the instructions at the download page. You can test all Lean code blocks in *.org files by executing the following command:

make test

To use a specific binary of Lean in test, please do the following:

LEAN_BIN=/path/to/your/lean make test