Is “Law of Leaky Abstractions” a proper noun?

Question

From Leaky abstraction (Wikipedia),

As coined by Spolsky, the Law of Leaky Abstractions states "All non-trivial abstractions, to some degree, are leaky."

I am not sure if Law of Leaky Abstractions is correct. Which of the following statements are correct (if any)?

1. Law of Leaky Abstractions is a proper noun. It is correct as is.
2. Leaky Abstractions is a proper noun, and it should be law of Leaky Abstractions
3. It should be law of leaky abstractions (as in several places in the original source). No proper nouns or capitalisation. Law of Leaky Abstractions is an example of willy-nilly capitalisation of words.

Answer 1

The Law of Leaky Abstractions is a title, not a noun. There are no nouns in that title that are proper nouns. They are all common nouns, but they are capitalized because they are in a title.

Answer 2

Option 1: Yes, Law of Leaky Abstractions is a proper noun. This "law" is a singular, named entity and it is appropriate to treat its name in the fashion of any other proper noun.