Contributions to the Founding of the Theory of Transfinite Numbers (Dover Books on Mathematics)

The Philosophy of Set Theory: An Historical Introduction to Cantor's Paradise (Dover Books on Mathematics)

Elements of Algebra

On Formally Undecidable Propositions of Principia Mathematica and Related Systems (Dover Books on Mathematics)

Essays on the Theory of Numbers (Dover Books on Mathematics)

Godel's Proof

Principia: The Mathematical Principles of Natural Philosophy [Active Content]

THE MATHEMATICAL PRINCIPLES OF NATURAL PHILOSOPHY (Illustrated and Bundled with LIFE OF SIR ISAAC NEWTON)

Differential Geometry of Curves and Surfaces: Revised and Updated Second Edition (Dover Books on Mathematics)

Set Theory and the Continuum Hypothesis (Dover Books on Mathematics)