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Thanks so much for your help - much appreciated. I will try what you have suggested.

Hi,

I have been sent a .tex file by a colleague which I want to create a PDF from. When I run PDFLaTeX I receive the following:

"Error: Double superscript". The error refers to the line below:

In the previous section, we had shown that $\sqrt{n}\bar{V}_n^{-1/2}(\hat{\theta}_n-\theta_0 ...

Many thanks for your help. Much appreciated.

Hi (I'm new to this forum)

I've been sent a file from someone but when I try to compile it I get "undefined control sequence" errors. I have found the lines that are causing the errors, but I am not sure what the problem is.

I found that the original author was missing a \usepackage{mathrsfs ...