The paper contains a short story which is inconsistent, essentially so, but perfectly intelligible. The existence of such a story is used to establish various views about truth in fiction and impossible worlds.
"Sylvan's Box: A Short Story and Ten Morals." Notre Dame J. Formal Logic 38 (4) 573 - 582, Fall 1997. https://doi.org/10.1305/ndjfl/1039540770