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+How To ...
+Chapter 1, Basic Concepts
+Chapter 2, Language Meaning and Definition
+Chapter 3, Informal Fallacies
+Chapter 4, Categorical Logic
+Chapter 5, Syllogisms
+Chapter 6, Propositional Logic
+Chapter 7, Natural Deduction in Propositional Logic
+Chapter 8, Predicate Logic
+Chapter 9, Induction