4 ms·
Uh, up to notation, a group better have such an element - otherwise it isn't a group!
by msds 9y ago
Uh, up to notation, a group better have such an element - otherwise it isn't a group!
- chowells 9y agoYou're right, but phrasing things in terms of addition and zero is possibly taking some liberties with the definition of group. Even if additive groups and general groups are isomorphic, I agree it's a bit misleading to use additive group naming to provide a lay definition of "group".