Chapter 1, Problem 6ST

a)

To determine

The statement “every integer is positive or negative” is true or false.

b)

To determine

The statement “every integer is even and odd” is true or false.

To determine

The statement “If $x$ is an integer and $x>2$ and $x$ is prime, hen $x$ is odd” is true or false.

d)

To determine

The statement “If $x$ and $y$ be integers then $x^2=y^2$ if and only if $x=y$ ” is true or false.

e)

To determine

The statement “The sides of triangle are all congruent to each other if and only if its three angles are all $60°$ $x=y$ ” is true or false.

f)

To determine

The statement “If an integer $x$ satisfies $x=x+1$ , then $x=6$ ” is true or false.