Math Linear independence, dimension of a space. By admin October 24, 2016 October 24, 2016 Suppose AA is a m×mm\times m real, square matrix and take the b=∑nk=1akvkb = \sum_{k=1}^{n}a_{k}v_{k}, n Why must n be even? Skew Symmetric matrices What does it mean 2N2^\mathbb{N}? [duplicate]