I’m not exactly sure how to do this!Let V and W be vector spaces and let f : V W be a linear map. Let U be the a subpace of W. Show that f ^1 (U) is a subspace of V where f^ 1 (U) = {x V : f(x) U}.
I’m not exactly sure how to do this!Let V and W be vector spaces and let f : V W be a linear map. Let U be the a subpace of W. Show that f ^1 (U) is a subspace of V where f^ 1 (U) = {x V : f(x) U}.
