on-restart-benchmarks/software/mza/share/minizinc/std/fzn_all_equal_set.mzn

%-----------------------------------------------------------------------------%
% Constrains the array of objects 'x' to be all equal.
%-----------------------------------------------------------------------------%

predicate fzn_all_equal_set(array[int] of var set of int: x) =
	forall(i, j in index_set(x) where i < j) ( x[i] = x[j] );