by Raymond M. Smullyan
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The lady or the tiger? and other logic p...
First-order logic
What is the name of this book?
Alice in puzzle-land
Forever undecided
The chess mysteries of Sherlock Holmes
Kokuritsu Kokkai Toshokan shozō Meijiki ...
A Tangled Tale
Mathematical recreations and problems of...
The Game of Logic
O homem que calculava
Mathematics and the Imagination