Exercise 1.3 (2)

2. Write the truth value of the negation of each of the following statements.

i) √5 is an irrational number
Ans: The truth value of the given statement is
         ∴ Truth value of its negation is F

ii) London is in England
Ans: The truth value of the given statement is T.
         ∴ Truth value of its negation is F

iii) For every x ∈ N , x + 3 < 8.
Ans: The truth value of the given statement is F. 
         ∴ Truth value of its negation is T