Topoi
$32.95
$11.53
Introduction to Logic
$19.95
$6.98
Mathematical Logic
$24.95
$8.73
The Undecidable
A Profile of Mathematical Logic
Natural Deduction
$10.95
The Axiom of Choice
$15.95
$5.58
Computability and Unsolvability
$16.95
First Order Mathematical Logic
$15.00
On Formally Undecidable Propositions of Principia Mathematica and Related Systems
$11.95
First-Order Logic
$12.95
The Continuum
$9.95
$3.48
