Lewis Carroll wrote a book about it? Cool. I didn't know that. What was the title of the book? I'd like to read it. Please add it to the article.
As far as merging the page with logic in general, I'm undecided. It would be sensible in the context of a serious overhaul/reorganization of that article, but I doubt that I, or anyone else, is about to undertake such a thing. Until then, might as well leave things as they are. SamHB 21:47, 22 June 2013 (EDT)