Seeking Explanations - Abduction in Logic, Philosophy of Science, ...
Atocha Aliseda-Llera
An Algebraic Introduction to Mathematical Logic
Donald Barnes & J. M. Mack
Philosophy of Logical Systems
Jaroslav Peregrin
The Ultimate Evil: The Truth About the Cult Murders: Son of ...
Maury Terry
C How to Program, 9/e
Paul Deitel & Harvey M. Deitel
Mathematical Reasoning: Writing and Proof, Version 2.0
Ted Sundstrom
Mathematical Reasoning: Writing and Proof - Version 1.1