Practice - Tautologies, Contradictions, and Contingencies
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
What is a tautology?
💡 Hint: Think of statements that cannot be false.
What does a contradiction mean?
💡 Hint: Reflect on statements that oppose each other.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is a tautology?
💡 Hint: Look for a definition that confirms 'always'.
True or False: A contradiction is always true.
💡 Hint: Reflect on what contradiction means.
3 more questions available
Challenge Problems
Push your limits with advanced challenges
Prove that 'P ∨ ¬P' is a tautology using a truth table.
💡 Hint: Fill in for P being true and false systematically.
Show that 'P → (Q ∨ R)' can be false by providing a specific situation.
💡 Hint: Consider scenarios where implications can fail.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.