P:V→V and P2=P
Let me see if I can define this better: so if V is the direct sum of U + W
let P(v)=u
let I am P be a complete subset of U; if u is an element of U P(u)=u, so I am P =U
let Ker P be a complete subset of W; if v is an element of V and v is an element of W, the v=0+w for some...
Hi there. I'm a long time reader, first time poster. I'm an undergraduate in Math and Economics and I am having trouble in Linear Algebra. This is the first class I have had that focuses solely on proofs, so I am in new territory.
Homework Statement
note Although the question doesn't state...