What is written in the novel is not an incorrect definition of set theory, and even if we only take into account what is written in the novel, this will make 1A+, no matter how well he knows set theory or not, if the man talks about the infinity of cardinals extending to infinity, the novel is over. If you ask an author who writes that the universe can be destroyed how much energy it takes to destroy the universe, he will probably say he doesn't know. But we still take that statement as 3A. It is important what he wants to do and what he writes, not how much he knows. What he writes in the novel leads us to a 1A+ structure, and the rest of his set theory, which is confirmed to be set theory, does not bind me or you.