please and please respond as soon as possible

1. What is the converse of "A implies B? 2. What does d n mean? 3. What is a prime number? 4. What does it mean for an integer to be even? 5. What does it mean for an integer to be odd? 6. What is proof by exhaustive checking? 7. What is conditional proof? 8. What is proof by contradiction? 9. What is an iff proof? I 10. Prove or give a counterexample for the following statement. If x and y are prime, then x + y is prime