The first problem with symbolic logic is the use of consistent symbols to make notation feasible and coherent. This book does that. The second problem is to take one step by step, with minimal extraneous writing, to show how it is done. This book also does this. The ideal book would include propositional as well as predicate calculus. This book does both. The other features of this marvelous little book are equally satisfying. The self tutorial is done heuristically, so that each step builds upon the last. I've encountered many logic texts, including Copi and Bates, which are NOT self directed, and this one is hands down superior to any book of logic. This is an excellent find.
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