Waterproof is an educational tool in which students can interactively prove mathematical statements. Here is an example of an exercise and part of its solution in Waterproof.

Develop build status:

Download and execute the bundled installer Waterproof.and.Coq.Setup.[version].exe from the release page. Note: do not change the default installation location, otherwise Waterproof will not work.

• Download and execute the dependencies installer from its release page. Note: do not change the default installation location, otherwise Waterproof will not work.
• Install Waterproof using the installer Waterproof.Setup.[version].exe from the release page.

The easiest way to get started with Waterproof on Linux or Mac is to follow the steps:

• Step 1. Install SerAPI and coq-waterproof following the steps below
• Step 2. Install Waterproof using the installer from the release page

The following steps (1.a, 1.b, 1.c and 1.d) describe how to install SerAPI and coq-waterproof on MacOS or Linux.

Install opam. You can either do so throug homebrew (https://brew.sh/) or through MacPorts (https://www.macports.org/). If you want to use homebrew, you can run the following commands in the terminal (taken from https://opam.ocaml.org/doc/Install.html#OSX)

brew install gpatch
brew install opam

If you prefer MacPorts, instead run

port install opam

Install opam, following instructions on https://opam.ocaml.org/doc/Install.html. For instance, for Ubuntu:

add-apt-repository ppa:avsm/ppa
apt update
apt install opam

In the terminal, execute the following commands (corresponding to instructions on https://ocaml.org/docs/install.html).

The first steps are common to all operating systems. First initialize the environment with

opam init

This may take a few minutes. In the meantime, opam will likely ask two questions. We recommend choosing 'y' to both, i.e. to opam modifying the .bash_profile and to opam adding a hook to the init scripts. Now execute the following line

eval $(opam env)
opam switch create 4.11.1
eval $(opam env)

After installing OCaml, run the following command in the terminal:

opam install coq-serapi.8.15.0+0.15.2

Opam will ask to install several packages. Choose 'y' to install them. This step will at least take several minutes, but may take up to an hour.

Finally, execute again

eval $(opam env)

Navigate in the terminal to a folder in which you are willing to place a folder with necessary library files. Then run:

git clone https://github.com/impermeable/coq-waterproof
cd coq-waterproof
make
make install

After installing SerAPI, you are ready to install Waterproof using your preferred installer from the release page. After installing Waterproof, it will ask you to point to a program called sertop. This is located in a hidden file folder. To show hidden file folders in file chooser on MacOS press ⌘ + Shift + . . On Linux, right-click somewhere in the file chooser and choose "Show hidden files".

Known issue: Because Waterproof is relatively unknown software, it is possible that it will initially be blocked by a virus scanner. To run Waterproof anyway: on Windows: Choose 'run anyway', on Mac: right-click and choose 'open software'; you may need to go to security settings to allow for running the app.

If you rather build the application yourself, you can follow these steps.