| [ QuizWit ] in KIDS 글 쓴 이(By): guest (stone) 날 짜 (Date): 1998년 5월 7일 목요일 오후 12시 35분 12초 제 목(Title): Re: linear algebra 10 2dimS - dimV = 2dimS + (dimU + dimW - dimV) - dimV = (dimS + dimU - dim(U n S)) + (dimS + dimW - dim(W n S)) + (dim(U n S) + dim(W n S) - dim(U n W n S)) - 2dimV = (dim(U + S) - dimV) + (dim(W + S) - dimV) + dim(U n S + W n S) <= dim(U n S + W n S) <= dim(S) ( S n U + S n W : subspace of S ) ... Too easy.....^^.... |