I have no idea what to do here.Show that the set of all isomorphism types of relations on has cardinality less than .

From the previous question, I know that if denotes all the bijections , then .

I also know that if then .

I'm not sure if the previous question applies to this one. If it does, then I think I need to show that . Unfortunately, this doesn't satisfy the condition. I also can't see why this would be the case.

Does anyone see how to do this question?