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GAP Copyright

GAP is

  Copyright (C) (1987--2022) by the GAP Group,

  incorporating the Copyright (C) 1999, 2000  by
        School of Mathematical and Computational Sciences,
        University of St Andrews,
        North Haugh, St Andrews, Fife KY16 9SS, Scotland

  being the Copyright (C) 1992 by
        Lehrstuhl D fuer Mathematik, RWTH,
        52056 Aachen, Germany,
  transferred to St~Andrews on July 21st, 1997.

except for files in the distribution, which have an explicit different copyright statement. In particular, the copyright of packages distributed with GAP is usually with the package authors or their institutions.

GAP 4 License

GAP 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. The MS Windows binary for GAP uses cygwin and therefore is GPLv2 (that is, "GPL version 2" not "GPL version 2 or later"). For details, see the file 'GPL' in the 'etc' directory of the GAP distribution or see The FSF's own site.


The GAP Group is interested in all your comments and suggestions. In particular we ask you to consider the following types of feedback.

  • If you publish a mathematical result that was partly obtained using GAP, please cite GAP, just as you would cite a paper that you used (see recommended citation for GAP).

  • Please, tell us about publications in which GAP was cited, as described on the page feedback by writing to