3 Use De Morgans law and write the negation to a My son is y

3. Use De Morgan’s law and write the negation to:

(a) My son is younger than 18 and he loves golf

(b) The sun rise in the east and rises at dawn

Solution

a) my son is elder than 18 or he does not loves golf

explanation: the negation using demorgans AND changes to OR and both are negative

b) the sun does not rises at east or the sun does not rises at dawn.