6.8. Question 7

Try these first

1. 1.

   What is the dual of 'P ∧ Q'?

   Hint

   Remember to swap AND with OR.

2. 2.

   If the dual of 'A ∨ True' is 'X', what is X?

   Hint

   Consider how constants transform.

3. 3.

   What is the dual of 'A ∨ B'?

   • A ∧ B
   • A ∨ B
   • A ↔ B

   Hint

   Remember to swap.

4. 4.

   True or False: The dual of a dual is the original proposition.

   • True
   • False

   Hint

   Think logically

5. 5.

   Prove that: If P ≡ Q, then P* ≡ Q*.

   Hint

   Focus on transforming the expressions correctly.

6. 6.

   Create a complex dual and show both the dual and its dual back.

   Hint

   Use the operational rules clearly.