- In "What Is the Name of This Book?" he recalls being introduced to logic at the age of six.
- In "The Lady or the Tiger?" (if I remember correctly), a friend asks Raymond not to tell his child that the puzzles he's enjoying are actually math because he hates math!
- In "What Is the Name of This Book?" he recalls being introduced to logic at the age of six.
- In "The Lady or the Tiger?" (if I remember correctly), a friend asks Raymond not to tell his child that the puzzles he's enjoying are actually math because he hates math!