gilith / metis

An automatic theorem prover for first order logic with equality

Metis Theorem Prover (Development Version)

Metis is an automatic theorem prover for first order logic with equality. It accepts problems in TPTP format.

Cloning this repo will install a development version, which includes active debugging code and regression scripts. The latest official release of Metis without any extra development cruft lives here.

This software is released under the MIT License.

Install

Installing Metis requires the MLton, Poly/ML or Moscow ML compiler, as well as standard system tools including GNU Make and Perl.

Clone this repo and initialize the development version:

git clone https://github.com/gilith/metis.git
cd metis
make init

By default the initialization step requires the MLton compiler, but you can change it to Poly/ML or Moscow ML by editing the top of Makefile.dev.

Build

Using the MLton compiler

Use the MLton compiler to build from source and run the test suite by executing

make mlton

The Metis executable can then be found at

bin/mlton/metis

Using the Poly/ML compiler

Use the Poly/ML compiler to build from source and run the test suite by executing

make polyml

The Metis executable can then be found at

bin/polyml/metis

Using the Moscow ML compiler

Use the Moscow ML compiler to build from source and run the test suite by executing

make mosml

The Metis executable can then be found at

bin/mosml/metis

Test

A simple test is to display a usage message:

path/to/metis --help

A more serious test is to check the status of a benchmark set of problems using the command

make status-test

Troubleshoot

You can use

make clean

to clean out any object files.

To report a bug or request an enhancement, please file an issue at GitHub.