- #1
Gear300
- 1,213
- 9
The question given is: Determine the smallest subset A of Z such that 2 ε A and A is closed with respect to addition.
The answer given was the set of all positive even integers, but I was thinking that the smallest subset would be the given element and the identity element (0 in this case) so that A = {0,2}...wouldn't this be more accurate?
The answer given was the set of all positive even integers, but I was thinking that the smallest subset would be the given element and the identity element (0 in this case) so that A = {0,2}...wouldn't this be more accurate?