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Thanks - but also, how can I remove the left padding the nested array so that the 5y_1 on the second line and so on lines up with x_1 on the first line? And how can I reduce the gap between the <=s? Thanks.

Hi, I've got a nested array that outputs:
2me74o2.jpg
with code:
$$\begin{array}[t]{ll}
\min &x_1 - x_2 \\
\textup{s.t.} &\begin{array}{lclll}
5y_1 & \leq & x_1 & \leq & 12y_1+2\\
y_2 & \leq & x_2 & \leq & 9(1-y_2) + 1\\
3y_3 & \leq & x_2 & \leq & 7(1-y_3) + 3\\
5y_4 & \leq & x_2 & \leq & 5(1 ...

Hi, when I compile cv.tex (attached), I get no .dvi output. I'm using TeXnicCenter and the build seems very, very short for the length of the document. I've attached the log file generated. The problem seems to be in the header section somewhere as the body of the file will compile, albeit obviously ...