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El enigma de Sherezade

The Gödelian Puzzle Book

These logic puzzles provide entertaining variations on Gödel's incompleteness the...

REFLECTIONS: THE MAGIC, MUSIC & MATH OF RAYMOND SMULLYAN

This is an exciting if not rambling account of events of Raymond Smullyan's four lives - as a mat...

El teorema de Löb

Godel’s Incompleteness Theorems

Kurt Godel, the greatest logician of our time, startled the world of mathematics in 1931 with his...

La isla del silencio parcial

El poder de la logica puede superar al mismisimo diablo y las historias que tienes delante lo dem...

To Mock a Mocking Bird

In this entertaining and challenging new collection of logic puzzles, Raymond Smullyan—auth...

Satan, Cantor, And Infinity And Other Mind-bogglin

More than two hundred new and challenging logic puzzles—the simplest brainteaser to the mos...

Forever Undecided

Forever Undecided is the most challenging yet of Raymond Smullyan’s puzzle collections....

Four Lives

This 'best of' hardcover collection of works by Raymond Smullyan features logic puz...

Magic Garden Of George B And Other Logic Puzzles, The

Theory of Formal Systems

This book serves both as a completely self-contained introduction and as an exposition of new res...