Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is an example of a tautology?
💡 Hint: Think of a statement that covers all truth values.
Question 2
Easy
What is a contradiction?
💡 Hint: It cannot be true under any condition.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is a tautology?
- A proposition that is always false
- A statement that can sometimes be true
- A statement that is always true
💡 Hint: Consider its behavior in all possible scenarios.
Question 2
True or False: A contradiction is sometimes true.
- True
- False
💡 Hint: Think about a scenario where it always holds.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider the expression p ↔ (q ∨ r). Analyze its properties and classify it as tautology, contradiction, or contingency and justify your reasoning.
💡 Hint: Examine truth values for different conditions of p, q, and r.
Question 2
Demonstrate the truth of De Morgan's laws: ¬(p ∧ q) ≡ ¬p ∨ ¬q using a truth table and identify whether it's a tautology or a contradiction.
💡 Hint: Don’t forget to check all four combinations of truth values for p and q.
Challenge and get performance evaluation