4 ms·
The integers >= 0 have 0 as the identity: 0 + n = n + 0 = n. But they don't have inverses, because e.g. there's no positive number n such that n + 1 = 0.
by SatvikBeri 10y ago
The integers >= 0 have 0 as the identity: 0 + n = n + 0 = n. But they don't have inverses, because e.g. there's no positive number n such that n + 1 = 0.
- cantankerous 10y agoI think you mean the naturals.
- floatboth 10y agoPeople disagree about whether 0 is natural though. Better not to use the word at all :D
- shele 10y agoOP said "integers >= 0". Not much to "think" here.
- SatvikBeri 10y agoI wanted to avoid an argument about whether 0 is a natural number or not.