deletions | additions       diff --git a/4-Dimensions.tex b/4-Dimensions.tex  index f96f4ee..b5fe9c4 100644  --- a/4-Dimensions.tex  +++ b/4-Dimensions.tex 
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0 & y_1z_2-z_1y_2 & z_1x_2-x_1z_2 & x_1y_2-y_1x_2 \\  z_1y_2-y_1z_2 & 0 & t_1z_2-z_1t_2 & y_1t_2-t_1y_2 \\  x_1z_2-z_1x_2 & z_1t_2-t_1z_2 & 0 & t_1x_2-x_1t_2 \\  y_1x_2-x_1y_2  & t_1y_2-y_1t_2  & x_1t_2-t_1x_2  & 0 \end{bmatrix}  \end{equation}