3 ms·(-1, -2, -3), is it not?by Koshkin 4y ago(-1, -2, -3), is it not?xigoi 4y agoThat's not a vector of natural numbers.Koshkin 4y agoAh, missed the N... But more interestingly, the non-negative integers 0...p-1 modulo a prime number p form a field (where -1, -2 etc. appear in a natural way), and so their tuples of some fixed length do form a vector space.