Published: January 1989
Odifreddi has written a delightful yet scholarly treatise...
G.E. Sacks, Harvard University and M.I.T.,
An impressive presentation of classical recursion theory... highly recommended to everyone interested in recursion theory.
C. Calude, Zentralblatt für Mathematik
A must as a reference manual for any mathematician, philosopher or theoretical computer scientist who deals with issues of computability.
An incredible wealth of information, including much that occurs for the first time in book form.
Journal of Symbolic Logic