I know the Nemeth system because that's what I learned in school, and I also know the way numbers are used in literary Braille. You just get a text document or any kind of document that just happens to have some numbers in it. I wouldn't say that I'm overly familiar with Antoine on its own, enough to read a math textbook in French or a science textbook. I haven't had the opportunity to do that.
On March 5th, 2009. See this statement in context.