Simple Formal Logic by Arnold vander Nat

I have no way to figure out how many of you master logic or how many of you even know how important it is. For those in the first category this book may not be anything new but I still urge you to go through it if you haven't already. For those of you who did not study logic before I believe this is the perfect time to start. In the introduction, Arnold vander Nat  says:

Logic is the study of correct reasoning.
The study of correct reasoning is the most important study there can be.
Therefore, logic is the most important study there can be

The purpose is to attain truth and that's why I think that each and every human being must master logic. Many people do not know how easy they believe lies and how hard they can be guided to see the truth. Enjoy Simple Formal Logic by Arnold vander Nat.

PS. A web page to go along with the book

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Buy: Amazon

Download: Ubuntu One

I recommend you buy the book, but if money is a temporary concern, you can download it and buy it at a later time or donate a sum directly to the writer. Keep knowledge free.