Let Q(x, y) be the statement “x + y = x − y.” If

the domain for both variables consists of all integers, what is the truth value

of

Let L(x, y) be the statement “x loves y,” where

the domain for both x and y consists of all people in the world. Use

quantifiers to express, “Joy is loved by everyone.”

Let P(x) denote the statement “x = x + 7.” What

is the truth value of the quantification