Customer Reviews

Intermediate Logic: Answer Key (1st edition)

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After completing the Introduction to Logic that precedes this book, I wanted more. So I ordered this book. I found it very difficult, and I'm sure it's not just me. I flew through chapters 1-5, but suddenly I got to exercise 6 and found it impossible to do the exercises. Information was missing, and I went back over the chapters, including doing extra reading online. I played around with the truth tables, getting nowhere until I reached the 'shorter truth tables', which I grasped after having to do extra reading online, due to insufficient or too complicated explanations in this book. I really enjoyed the shorter truth tables and flew along until chapter 15: Formal Proofs - ugh! I kept trying to understand, re-reading and there is no way I can get any further than these. So, I got through 2/3 of this book and am now giving up. Perhaps you need to be a maths whiz. Good luck if you attempt this book!

There were a couple of things that I found very useful; the Dilemma and the 3 ways to refute it and the different types of syllogisms.

Note also that the author is a fundamentalist Christian, and some of his syllogisms reflect this. Not everyone else takes that view of Christianity, but you can still have fun with these syllogisms by applying the same rules to refute them.

This book was purchased as a school supply and I received it in excellent condition just 4 days after I ordered it!