Enrol to start learning
Reading is open to everyone. Enrolling is free, and it is what unlocks the audio lessons, practice tests and progress tracking.
4. Rules of Inference
This section
Practice test
10 questions on this section. Wrong answers show you what to read again.
Sign up to take itWhole chapter
Revision test
Mixed questions from across the chapter. Your answers get marked.
Sign up to take itQuick
Flashcard drill
2 cards from this lesson. Good the night before a test.
Try these first
- 1.
What is Modus Ponens?
Hint
Remember the structure: If P then Q, P, therefore Q.
- 2.
Define a premise.
Hint
It's a building block of logical arguments.
- 3.
What is Modus Ponens?
- A rule allowing conclusions from premises
- A logical fallacy
- A tautology
Hint
Think about how conclusions are reached logically.
- 4.
Is the argument 'If it rains, the ground gets wet; The ground is wet; therefore, it is raining' valid?
- True
- False
Hint
Does the truth of Q imply P?
- 5.
Develop a valid argument using Modus Tollens and illustrate an example where it applies.
Hint
Check the structure of the implication and its contrapositive.
- 6.
Create a scenario where a fallacy of affirming the conclusion would occur and explain why it's incorrect.
Hint
Identify the presence of alternate pathways to the conclusion that invalidate the argument.
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
Get your answers marked and your progress tracked
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting