Journals Higher Education



Published: 15 September 2015

600 Pages

8 x 10 inches

ISBN: 9780199385423

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Bookseller Code (04)

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The Power of Critical Thinking

Effective Reasoning about Ordinary and Extraordinary Claims

Fifth Edition

Lewis Vaughn

New to this Edition:

  • Substantial expansion of the formal logic chapters: Ch. 6, "Deductive Reasoning: Propositional Logic," covers the method of proof, rules of inference, and rules of replacement, and Ch. 7, "Deductive Reasoning: Categorical Logic" features detailed discussions of the square of opposition and categorical equivalence (conversion, obversion, and contraposition)
  • Many updated and revised exercises, questions, and boxes that reflect current events, new student interests, and recent social changes
  • New material on definitions, ambiguity, and vagueness (Ch. 5) and an updated test of scientific literacy (Ch. 10)
  • Clearer discussions of background information (Ch. 2), the genetic fallacy (Ch. 5), appeal to the person (Ch. 5), and physical possibility (Ch. 10)

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