# Showing that two vector spaces are equal.

1. Jan 20, 2013

### jdinatale

I thought that I should do containment in both directions. I have containment in one direction, but the other is much harder. Any ideas?

2. Jan 20, 2013

### LCKurtz

Call $w_1= v_1,\ w_2 = c_{12}v_1+v_2,\ w_3 = c_{13}v_1+c_{23}v_2 + v_3$ Can you solve for the $v_i$ in terms of the $w_i$?