Logic-Based Knowledge Representation
Frank van Harmelen & Peter Jackson & Han Reichgelt
The Extent of the Atonement
David L. Allen
Intensional Semantics - Chapter 3
Alonzo Church
The Joyous Cosmology: Adventures in the Chemistry of Consciousness
Alan Watts
Race, Language, and Culture
Franz Boas
Mathematical Reasoning: Writing and Proof, Version 2.0
Ted Sundstrom
Mathematical Reasoning: Writing and Proof - Version 1.1