Doing Philosophy: From Common Curiosity to Logical Reasoning
Timothy Williamson
Outlines and Highlights for Philosophy: Power of Ideas by Brooke ...
Brooke Noel Moore & Kenneth Bruder
Philosophy of Logic
Dale Jacquette
Poverty and Wealth: Why Socialism Doesn't Work
Ronald H. Nash
Partial Differential Equations and Mathematica®
Prem K. Kythe & Pratap Puri & Michael R. Schäferkotter
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Carl Sagan