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# The GAP 4 package XModAlg  

## Introduction 

This package allows for computation with crossed modules of commutative algebras; cat1-algebras; and morphisms of these structures.

## Distribution

 * The 'XModAlg' package is distributed with the deposited GAP packages, see: 
     <http://www.gap-system.org/Packages/xmodalg.html>
 * It will, in due course, be available from the GitHub repository at:
     <https://gap-packages.github.io/xmodalg/> 

## Copyright

The 'XModAlg' package is Copyright {\copyright} Zekeriya Arvasi and Alper Odabas et al, 2014--2020. 

'XModAlg' is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version. 

For details, see \URL{http://www.gnu.org/licenses/gpl.html}

## Installation

 * unpack `xmod-<version_number>.zip' in the `pkg' subdirectory of the GAP root directory.
 * From within GAP load the package with:

    gap> LoadPackage("XModAlg");

    true
 
 * The file manual.pdf is in the `doc' subdirectory.

## Contact

If you have a question relating to 'XModAlg', encounter any problems, or have a suggestion for extending the package in any way, please 
 * email: `aodabas@ogu.edu.tr`
 * or report an issue at: <https://github.com/gap-packages/xmodalg/issues/new>  

