Question

1. Let Q(x) denote the statement “x is an integer”. What are the truth values?

A. Q(-1)

B. Q(0)

C. Q(8/2)

D. Q(sqrt(-4))

E. Q(sqrt(4))

Answer 1

a. true. -1 is integer.

b. true. 0 is integer

c. true 8/2=4 is integer

d. false. $\sqrt{-4}$ is not integer

e.true $\sqrt{4}=2$ is integer