A BEGINNER'S GUIDE TO MATHEMATICAL LOGIC (PB)

ALICE IN PUZZLE-LAND (PB)

BEGINNER'S FURTHER GUIDE TO MATHEMATICAL LOGIC, A (HB)

BEGINNER'S FURTHER GUIDE TO MATHEMATICAL LOGIC, A (PB)

CHESS MYSTERIES OF SHERLOCK HOLMES (PB)

DIAGONALIZATION AND SELF-REFERENCE (HB)

FIRST-ORDER LOGIC (PB)

FOUR LIVES (HB)

GODEL'S INCOMPLETENESS THEOREMS (HB)

IN THEIR OWN WORDS (PB)

KING ARTHUR IN SEARCH OF HIS DOG AND OTHER CURIOUS PUZZLES (PB)

LOGICAL LABYRINTHS

LOGICAL LABYRINTHS (HB)

MAGIC GARDEN OF GEORGE B AND OTHER LOGIC PUZZLES, THE (HB)

MAGIC GARDEN OF GEORGE B AND OTHER LOGIC PUZZLES, THE (PB)

RECURSION THEORY FOR METAMATHEMATICS (HB)

REFLECTIONS: THE MAGIC, MUSIC AND MATHEMATICS OF RAYMOND SMULLYAN (HB)

REFLECTIONS: THE MAGIC, MUSIC AND MATHEMATICS OF RAYMOND SMULLYAN (PB)

SATAN, CANTOR & INFINITY (PB)

SATAN, CANTOR UND DIE UNENDLICHKEIT (HB)

SATAN, CANTOR UND DIE UNENDLICHKEIT (PB)

SET THEORY AND THE CONTINUUM PROBLEM (PB)

THE LADY OR THE TIGER? (PB)

THE MAGIC GARDEN OF GEORGE B AND OTHER LOGIC PUZZLES

THE MATHEMATICS OF VARIOUS ENTERTAINING SUBJECTS

THE MATHEMATICS OF VARIOUS ENTERTAINING SUBJECTS (HB)

THE RIDDLE OF SCHENERAZADE (PB)

THE TAO IS SILENT (PB)

THEORY OF FORMAL SYSTEMS. (AM-47)

THEORY OF FORMAL SYSTEMS. (AM-47), VOLUME 47 (PB)

THIS BOOK NEEDS NO TITLE (PB)

TO MOCK A MOCKINGBIRD: AND OTHER LOGIC PUZZLES (PB)

WHAT IS THE NAME OF THIS BOOK? (PB)

WHO KNOWS?