Recent content by sbo

if you are required to prove that -(-u)=-u can you say that proving that condition is equivalent to proving that -(-u)+(-u)=0 since you would have added a negative of a vector -u and worked it through until you arrive there?

if you are required to prove that -(-u)=u can you say that proving that condition is equivalent to proving that -(-u)+(-u)=0 since you would have added a negative of a vector -u and worked it through until you arrive there?

thanks now I know that I don't need to prove axioms, they are given. thanks to that. Im still worried about this vector thing and ill try to prove that the negative of a vector in V is unique, thaks all :)

thanx now i know that i don't need to prove axioms, they are given. thanks to that.

Hi. please anyone help me with vector spaces and the way to prove the axioms. like proving that (-1)u=-u in a vector space.