all_solutions(+Goal)- Find all solutions to the given goal
all_solutions(+Goal, ?NSols)- Find all solutions to the given goal
first_solution(+Goal)- Find the first solution to the given goal
is_sbds_var(?Var)- Checks whether a variable is an SBDS variable
sbds_indomain(?Var)- Instantiate an integer SBDS variable to an element of its domain
sbds_initialise(+Array, ++VarDimNames, ++ValueDimSpec, +SymSpecs, +Options)- Initialises the data structures required by the SBDS algorithm
sbds_initialise_set(+Array, ++VarDimNames, ++ValueDimSpec, +SymSpecs, +Options)- Initialises the data structures required by the SBDS algorithm (set version)
sbds_labeling(?List)- Instantiate all integer SBDS variables in a list to elements of their domains
sbds_record(?, ?, ?)- No description available
sbds_try(+Var, ++Value)- Try assigning a value to an SBDS search variable
sbds_try(+Var, ++Value, ?Success)- Try assigning a value to an SBDS search variable
sbds_try_set(+Var, ++Value, ++Bool)- Try adding/excluding a value to/from an SBDS set search variable
sbds_try_set(+Var, ++Value, ++Bool, ?Success)- Try adding/excluding a value to/from an SBDS set search variable

Ian P. Gent, Warwick Harvey and Tom Kelsey. "Groups and Constraints:
Symmetry Breaking during Search.". In P. Van Hentenryck, editor,
*Proceedings of the Eighth International Conference on Principles and
Practice of Constraint Programming - CP 2002*, LNCS 2470, pages
415-430. Springer-Verlag, 2002.

It has been enhanced by (amongst other things) being integrated with the symmetry expression library described in:

Warwick Harvey, Tom Kelsey and Karen Petrie. "Symmetry Group Expression
for CSPs." In Barbara Smith et al., editors, *Proceedings of
SymCon'03: Third International Workshop on Symmetry in Constraint
Satisfaction Problems, a workshop of CP 2003*, pages 86-96.
September, 2003.

This library is still being developed and is expected to evolve. Feedback, suggestions, problem reports, etc. welcome.

Please note that this library currently does not work on Windows machines due to its dependence on the GAP interface library.

**Status:**evolving**Author:**Warwick Harvey, Ian Gent (and probably others...)

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