The sphere eversion project

The goal of this project is to formalize the proof of a theorem implying the existence of sphere eversions. Details can be found on the project website.

Build the Lean files

To build the Lean files of this project, you need to have a working version of Lean. See the installation instructions (under Regular install).

To obtain this repo, run leanproject get sphere-eversion. If you already have the repo, you can update it with git pull followed by leanproject get-mathlib-cache.

To build the repo, run leanproject build.

Build the blueprint

To build the web version of the blueprint, you need a working LaTeX installation. Furthermore, you need some packages:

sudo apt install graphviz libgraphviz-dev
pip3 install invoke pandoc
cd .. # go to folder where you are happy clone git repos
git clone [email protected]:plastex/plastex
pip3 install ./plastex
git clone [email protected]:PatrickMassot/leanblueprint
pip3 install ./leanblueprint
cd sphere-eversion

To actually build the blueprint, run

leanproject get-mathlib-cache
leanproject build
inv all

To view the web-version of the blueprint locally, run inv serve and navigate to http://localhost:8000/ in your favorite browser.