. . "The lady or the tiger? : and other logic puzzles, including a mathematical novel that features Gödel's great discovery" . "The lady or the tiger? : and other logical puzzles"@en . "The lady or the tiger? : and other logical puzzles" . . . . . . . . . . . . . . . . "Puzzles." . . . . "Mathematical recreations." . . "Philosophical recreations." . . "Logic." . .