Let the universe be all integers. Define:
p(x): x > 0,\quad q(x): x\text{ is even},\quad r(x): x\text{ is a perfect square},\quad s(x): x \text{ divisible by } 3,\quad t(x): x \text{ divisible by } 7
Write in symbolic form:
i) At least one integer is even.
ii) There exists a positive integer that is even.
iii) If x is even, then x is not divisible by 3.
iv) No even integer is divisible by 7.
v) There exists an even integer divisible by 3.
Answer:-
