Cause as an implication
Newton C.A. Da Costa & Richard Sylvan
Cryptography: A Very Short Introduction
Sean Murphy & Fred Piper
Collapse IV - Concept Horror
Urbanomic
The Instinct of Workmanship and the Irksomeness of Labor
Thorstein Veblen
Beyond the universal Turing machine
B. Jack Copeland & Richard Sylvan
In the Beginning...was the Command Line
Neal Stephenson