The number n is greater than 4 or less than 0

Question

i think n is supposed to be in between 0 and four but im not sure

Answer 1

First way to denote it: 4<n<0

Second way to denote it:{n|4<n or n<0}

Third way to denote it: 4<n or n<0

Fourth way to denote it: {n|4<n v n<0}

Answer 2

n >4 OR n<0

 

n can be any number EXCEPT the numbers

from 0 to 4