Question: 1. Explain the difference between a tautology and a self-contradiction. 2. Is every statement either a tautology or a self-contradiction? Why or why not? 3.

1. Explain the difference between a tautology and a self-contradiction. 2. Is every statement either a tautology or a self-contradiction? Why or why not? 3. Describe how to find the converse, inverse, and contrapositive of a conditional statement. 4. How can you decide if two statements are logically equivalent? 5. How can you decide if one statement is the negation of another? 6. Is a statement always logically equivalent to its converse? Explain. 7. Describe De Morgan's laws for logic. What are they used for? 8. How are De Morgan's laws for logic similar to De Morgan's laws for sets?\f

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