Formal Logic quiz
144 questions across 1 difficulty level. Every attempt draws a fresh random set, so you can play as often as you like.
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Hard
144 questions
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Sample questions
- Which of the given formulas of PL is the best symbolization of the following sentence? Brittany likes fish and lizards, but not cats.
- Construct a complete truth table for the following argument. Then, using the truth table, determine whether the argument is valid or invalid. If the argument is invalid, choose an option which presents a counterexample. (There may be other counterexamples as well.) ~E ∨ F ~F / E
- Identify the conclusion of the following argument. The sense of a term is supposed to determine its reference. But reference can vary without any difference in thought. So, the senses of terms must be able to vary without variation in thought. So, our thoughts do not determine the meanings of our terms; meanings are not in the head. (Hilary Putnam)
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