# Proof General — Organize your proofs! 

Proof General is a generic Emacs interface for proof assistants.
The aim of the Proof General project is to provide a powerful, generic
environment for using interactive proof assistants.

This is version 4.4 of Proof General.

## Setup

Download and install Proof General from GitHub:

```
git clone https://github.com/ProofGeneral/PG ~/.emacs.d/lisp/PG
make -C ~/.emacs.d/lisp/PG
```

Then add the following to your .emacs:

```
;; Open .v files with Proof General's Coq mode
(require 'proof-site "~/.emacs.d/lisp/PG/generic/proof-site")
```

## More info

See
    INSTALL	     for installation details.
    COPYING	     for license details.
    COMPATIBILITY    for version compatibility information.
    REGISTER	     for registration information (please register).
    FAQ, doc/	     for documentation of Proof General.

    <prover>/README  for additional prover-specific notes

Links:

    Wiki:		  http://proofgeneral.inf.ed.ac.uk/wiki
    Lists:		  http://proofgeneral.inf.ed.ac.uk/mailinglist

Supported proof assistants:  Coq, Isabelle, LEGO, PhoX
Experimental (less useful):  CCC,ACL2,HOL98,Hol-Light,Lambda-Clam,Shell,Twelf
        Obsolete instances:  Demoisa,Lambda-Clam,Plastic

A few example proofs are included in each prover subdirectory.  The
"root2" proofs of the irrationality of the square root of 2 were
proofs written for Freek Wiedijk's challenge in his comparison of
different theorem provers, see http://www.cs.kun.nl/~freek/comparison/.  
Those proof scripts are copyright by their named authors.  
(NB: most of these have rusted)

Check BUGS files for some static problems and issues.  Please report
new bugs on the Trac site at http://proofgeneral.inf.ed.ac.uk/trac.

For the latest news and downloads, visit Proof General on the web 
at: http://proofgeneral.inf.ed.ac.uk

David Aspinall <da+pg-feedback@inf.ed.ac.uk>
October 2011.