To Mock a Mockingbird

In this entertaining and challenging collection of logic puzzles, Raymond Smullyan -- author of Forever Undecided -- continues to delight and astonish us with his gift for making available, in the thoroughly pleasurable form of puzzles, some of the most important mathematical thinking of our time.
In the first part of the book, he transports us once again to that wonderful realm where knights, knaves, twin sisters, quadruplet brothers, gods, demons, and mortals either always tell the truth or always lie, and where truth-seekers are set a variety of fascinating problems. The section culminates in an enchanting and profound metapuzzle in which Inspector Craig of Scotland Yard gets involved in a search for the Fountain of Youth on the Island of Knights and Knaves.
In the second part of To Mock a Mockingbird, we accompany the Inspector on a summer-long adventure into the field of combinatory logic (a branch of logic that plays an important role in computer science and artificial intelligence). His adventure, which includes enchanted forests, talking birds, bird sociologists, and a classic quest, provides for us along the way the pleasure of solving puzzles of increasing complexity until we reach the Master Forest and -- thanks to Godel's famous theorem -- the final revelation.

Raymond Smullyan, a well-known mathematician and logician and the author of many books, is Oscar Ewing Professor of Philosophy at Indiana University and Professor Emeritus of the City University of New York-Lehman College and Graduate Center.

- Part I - Logic Puzzles - 1: The Prize and Other Puzzles - 2: The Absentminded Logician - 3: The Barber of Seville - 4: The Mystery of the Photograph - Part II - Knights, Knaves, and the Fountain of Youth - 5: Some Unusual Knights and Knaves - 6: Day-Knights and Night Knights - 7: Gods, Demons, and Mortals - 8: In Search of the Fountain of Youth - Part III - To Mock a Mockingbird - 9: To Mock a Mockingbird - 10: s There a Sage Bird - 11: Birds Galore - 12: Mockingbirds, Warblers, and Starlings - 13: A Gallery of Sage Birds - Part IV - Singing Birds - 14: Curry's Lively Bird Forest - 15: Russell's Forrest - 16: The Forest Without a Name - 17: Godel's Forest - Part V - The Master Forest - 18: The Master Forest - 19: Aristocratic Birds - 20: Craig's Discovery - Part VI - The Grand Question - 21: The Fixed Point Principle - 22: A Glimpse into Infinity - 23: Logical Birds - 24: Birds That Can Do Arithmetic - 25: Is There an Ideal Bird - Epilogue - Who's Who Among the Birds