public bool MinSortHeadPropA(FsCheck.NonEmptyArray <FsCheck.NormalFloat> xs)
{
double[] ys = xs.Get.Select(e => e.Get).ToArray();
Array.Sort(ys);
return(Util.InEpsilon(xs.Get.Min().Get, ys[0], epsilon * ys[0]));
}
public bool NotStructurablyEquatable(FsCheck.NonEmptyArray <int> xs)
{
var set = new[] { xs.Item.ToImmutableArray() }.ToHashSet();
return(!set.Contains(xs.Item.ToImmutableArray()));
}