Only the instances need a theory, so I split them out into Interface.HasEmptySet.Instances. With this change instance search doesn't have to consider the particular theory, only the set representation.
It does mean that we can't have different empty sets for different theories with the same underlying set representation, but I don't think that's something we are likely to need.
Only the instances need a theory, so I split them out into
Interface.HasEmptySet.Instances. With this change instance search doesn't have to consider the particular theory, only the set representation.It does mean that we can't have different empty sets for different theories with the same underlying set representation, but I don't think that's something we are likely to need.