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I want to write two consecutive limits $\displaystyle{\lim\limits_{x\to 1^-}{\lim\limits_{N\to\+\infty}$, but it doesn't work. Can someone offer some help, please?

Stephen
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Dimitris Papageorgiou
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    What, exactly, do you mean "doesn't work"? The code between the $s has four opening braces, but only two closing braces -- these must match. Perhaps you mean $\displaystyle\lim\limits_{x\to 1^-}\lim\limits_{N\to+\infty}$? Also, \displaystyle implies limits, so those are redundant. – barbara beeton Dec 05 '20 at 15:56

1 Answers1

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Edit: Thank you very much for the suggestion of the user @Stephen.

Your question is very general without a MWE....You have done a mix :-) of commands using \limits or (if you prefer) \displaystyle. Here there is a small example.

\documentclass[a4paper,12pt]{article}
\usepackage{amsmath,amssymb}
\begin{document}
$\lim\limits_{x\to 1^-}\lim\limits_{N\to+\infty\vphantom{x\to 1^-}}$
\end{document}

enter image description here

Edit 2: from second comment of @Stephen: It is possible to use \adjustlimits command from mathtools package. Here there is another MWE:

\documentclass[a4paper,12pt]{article}
\usepackage{mathtools,amssymb}
\begin{document}
$\adjustlimits\lim_{x\to 1^-}\lim_{N\to+\infty}$
\end{document}

enter image description here

Sebastiano
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    Maybe even $\lim\limits_{x\to 1^-}\lim\limits_{N\to+\infty\vphantom{x\to 1^-}}$ for vertical alignment/prettification. – Stephen Dec 06 '20 at 18:33
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    @Stephen You are absolutely right. In truth I had seen that there was not a correct alignment. Now I change and add your comment. Thank you very much. – Sebastiano Dec 06 '20 at 20:13
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    ...and alternatively the mathtools package provides: $\adjustlimits\lim_{x\to 1^-}\lim_{N\to+\infty}$. – Stephen Feb 15 '21 at 19:22
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    @Stephen Hi, it is true...in my bookmarks there is a question exactly to remember me this command. Thank you again but I have finished the upvotes :-(((( today. – Sebastiano Feb 15 '21 at 20:07