Axiomatic Set Theory
Patrick Suppes
Introduction To Mathematical Logic
Richard E. Hodel
A Book of Set Theory
Charles C. Pinter
A Beginner's Guide To Mathematical Logic
Raymond M. Smullyan
Model Theory
Chen Chung Chang
Set Theory and the Continuum Hypothesis
Paul J. Cohen
Principles of Mathematics
Bertrand Russell
Our Knowledge of the External World
Bertrand Russell
Gödel's Proof
Ernest Nagel
Sheaves in Geometry and Logic
Saunders Mac Lane
Journey From Natural Numbers To Complex Numbers
Nita H. Shah
A Short Introduction To Intuitionistic Logic
G. Mints
Thinking Mathematically
John Mason
The Price of Cake
Clément Deslandes
Why Machines Learn
Anil Ananthaswamy
Sum Stories
Robin J. Wilson
What Is Mathematical Logic?
Guillermo Badia
Alcuin's Recreational Mathematics
Marcel Danesi