Talk:Abstract Algebra/Vector Spaces

In definition (Vector Space) item 1. and 2. Must av=vd? If v=(d,e,f) then a(d,e,f)=(ad,ae,af)=(da,ea,fa)=(d,e,f)a. Must d,e,f be part of the same field as a,b? Ze dog nose (discuss • contribs) 21:03, 7 August 2015 (UTC)