library for computation automorphism group and canonical labelling of a graph


LTS Haskell 22.30:
Stackage Nightly 2024-07-21:
Latest on Hackage:

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LicenseRef-GPL licensed by Jean-Philippe Bernardy
Maintained by [email protected]
This version can be pinned in stack with:hgal-,1856

Module documentation for

Depends on 4 packages(full list with versions):


Haskell Graph Automorphism Library

This library is packaged as a Cabal package.

It depends only on base and mtl; however, the test suite depends on the collection package (also by me, Jean-Philippe Bernardy)

It is entirely unnecessary to build the test suite to use the library however.

Original Author

Jean-Philippe Bernardy

Current Maintainer

Marcellus Siegburg