This is the first of three short chapters introducing symbolic notation and logical rules. In order to understand an argument, we must be able to read and comprehend the sentences that compose it. We need to be able to tell whether the sentences in our argument are true or false, and whether they follow logically from the previous ones. Chapter 2 focuses on understanding the basics: statement forms and their truth tables. We discuss what it means for two statements to be equivalent and practice negations of statements. This chapter, like all that follow, includes detailed examples and solved exercises for the students to hone their techniques before turning to the problems provided at the end of the chapter.

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Logically Speaking

  • Ulrich Daepp,
  • Pamela Gorkin

摘要

This is the first of three short chapters introducing symbolic notation and logical rules. In order to understand an argument, we must be able to read and comprehend the sentences that compose it. We need to be able to tell whether the sentences in our argument are true or false, and whether they follow logically from the previous ones. Chapter 2 focuses on understanding the basics: statement forms and their truth tables. We discuss what it means for two statements to be equivalent and practice negations of statements. This chapter, like all that follow, includes detailed examples and solved exercises for the students to hone their techniques before turning to the problems provided at the end of the chapter.