Sorry I still don't understand. I was expecting a yes or no. Is it a part of the BLL or not?
Her response was accurate. Do you want her to wipe your ass for you as well?
There is no exact body of law called Black Letter Law. It's a vague term for the rules you need to know and apply for your exam. "Black Letter Law" can include stautes, common law, general principles derived from cases, sometimes policy, and sometimes whatever your professor says.
Some students feel the Restatements are a helpful way to study these rules - I found it Restatement of Torts to much more helpful than my casebook. But I think most students don't us it.
By the way, foreign courts often rely on Restatements when they need to apply American law, especially the Restatement of Foreign Relations.