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Propositional Logic: Logical Arguments and Informal Fallacies

Propositional Logic: Logical Arguments and Informal Fallacies

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following is a valid logical argument?

  1. If it is raining, then the ground is wet. It is raining. Therefore, the ground is wet.
  2. All dogs are mammals. All mammals are animals. Therefore, all dogs are animals.
  3. Some birds can fly. Penguins are birds. Therefore, penguins can fly.
  4. No cats are dogs. All dogs are animals. Therefore, no cats are animals.
Question 2 Multiple Choice (Single Answer)

Which of the following is an example of an informal fallacy?

  1. Ad hominem
  2. Straw man
  3. Begging the question
  4. All of the above
Question 3 Multiple Choice (Single Answer)

Which of the following is a valid logical argument?

  1. If it is raining, then the ground is wet. The ground is wet. Therefore, it is raining.
  2. All dogs are mammals. All mammals are animals. Therefore, all dogs are animals.
  3. Some birds can fly. Penguins are birds. Therefore, penguins can fly.
  4. No cats are dogs. All dogs are animals. Therefore, no cats are animals.
Question 4 Multiple Choice (Single Answer)

Which of the following is an example of an informal fallacy?

  1. Ad hominem
  2. Straw man
  3. Begging the question
  4. All of the above
Question 5 Multiple Choice (Single Answer)

Which of the following is a valid logical argument?

  1. If it is raining, then the ground is wet. The ground is wet. Therefore, it is raining.
  2. All dogs are mammals. All mammals are animals. Therefore, all dogs are animals.
  3. Some birds can fly. Penguins are birds. Therefore, penguins can fly.
  4. No cats are dogs. All dogs are animals. Therefore, no cats are animals.
Question 6 Multiple Choice (Single Answer)

Which of the following is an example of an informal fallacy?

  1. Ad hominem
  2. Straw man
  3. Begging the question
  4. All of the above
Question 7 Multiple Choice (Single Answer)

Which of the following is a valid logical argument?

  1. If it is raining, then the ground is wet. The ground is wet. Therefore, it is raining.
  2. All dogs are mammals. All mammals are animals. Therefore, all dogs are animals.
  3. Some birds can fly. Penguins are birds. Therefore, penguins can fly.
  4. No cats are dogs. All dogs are animals. Therefore, no cats are animals.
Question 8 Multiple Choice (Single Answer)

Which of the following is an example of an informal fallacy?

  1. Ad hominem
  2. Straw man
  3. Begging the question
  4. All of the above
Question 9 Multiple Choice (Single Answer)

Which of the following is a valid logical argument?

  1. If it is raining, then the ground is wet. The ground is wet. Therefore, it is raining.
  2. All dogs are mammals. All mammals are animals. Therefore, all dogs are animals.
  3. Some birds can fly. Penguins are birds. Therefore, penguins can fly.
  4. No cats are dogs. All dogs are animals. Therefore, no cats are animals.
Question 10 Multiple Choice (Single Answer)

Which of the following is an example of an informal fallacy?

  1. Ad hominem
  2. Straw man
  3. Begging the question
  4. All of the above
Question 11 Multiple Choice (Single Answer)

Which of the following is a valid logical argument?

  1. If it is raining, then the ground is wet. The ground is wet. Therefore, it is raining.
  2. All dogs are mammals. All mammals are animals. Therefore, all dogs are animals.
  3. Some birds can fly. Penguins are birds. Therefore, penguins can fly.
  4. No cats are dogs. All dogs are animals. Therefore, no cats are animals.
Question 12 Multiple Choice (Single Answer)

Which of the following is an example of an informal fallacy?

  1. Ad hominem
  2. Straw man
  3. Begging the question
  4. All of the above
Question 13 Multiple Choice (Single Answer)

Which of the following is a valid logical argument?

  1. If it is raining, then the ground is wet. The ground is wet. Therefore, it is raining.
  2. All dogs are mammals. All mammals are animals. Therefore, all dogs are animals.
  3. Some birds can fly. Penguins are birds. Therefore, penguins can fly.
  4. No cats are dogs. All dogs are animals. Therefore, no cats are animals.
Question 14 Multiple Choice (Single Answer)

Which of the following is an example of an informal fallacy?

  1. Ad hominem
  2. Straw man
  3. Begging the question
  4. All of the above
Question 15 Multiple Choice (Single Answer)

Which of the following is a valid logical argument?

  1. If it is raining, then the ground is wet. The ground is wet. Therefore, it is raining.
  2. All dogs are mammals. All mammals are animals. Therefore, all dogs are animals.
  3. Some birds can fly. Penguins are birds. Therefore, penguins can fly.
  4. No cats are dogs. All dogs are animals. Therefore, no cats are animals.
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