1. If a set S of vectors spans a vector space V, then it is possible to remove one or more vectors from S to create a basis for V. True False
2. If a set S of vectors is linearly independent in a vector space V, then it is possible to add zero or more vectors to S to create a basis for V. True False
3. The set {0} forms a basis for the zero subspace. True False
4. If S = span {W1, W2, U1}, then dim(S) = 3. True False