2.3 Valid Vs Invalid Arguments

10 Questions
Grammar Quizzes & Trivia

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Questions and Answers
  • 1. 
    As the term is used in logic, it makes no sense to describe an individual claim as “valid” or “invalid”.
    • A. 

      True

    • B. 

      False

  • 2. 
    An argument can have invalid logic but still qualify as a “good” argument.
    • A. 

      True

    • B. 

      False

  • 3. 
    If an argument is valid then by definition it’s a good argument.
    • A. 

      True

    • B. 

      False

  • 4. 
    1. All dogs bark. 2. Charlie is a dog. Therefore, Charlie barks.
    • A. 

      Valid

    • B. 

      Invalid

  • 5. 
    1. Almost all dogs can play the piano. 2. Charlie is a dog. Therefore, Charlie can play the piano.
    • A. 

      Valid

    • B. 

      Invalid

  • 6. 
    1. All dogs bark. 2. Charlie barks. Therefore, Charlie is a dog.
    • A. 

      Valid

    • B. 

      Invalid

  • 7. 
    1. If there is no gas in the car then it won’t start. 2. The car started. Therefore, there is gas in the car.
    • A. 

      Valid

    • B. 

      Invalid

  • 8. 
    1. The card you picked is either a Jack, a Queen or a King. 2. The card you picked is not a Jack. Therefore, the card you picked is either a Queen or a King.
    • A. 

      Valid

    • B. 

      Invalid

  • 9. 
    • A. 

      Valid

    • B. 

      Invalid

  • 10. 
    1. My teacher Mr. Hill is a jackass. 2. All jackasses have long ears. Therefore, my teacher Mr. Hill has long ears.
    • A. 

      Valid

    • B. 

      Invalid