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In TeX Live 2016 the following simple document fails to compile:

\documentclass[11pt]{scrartcl}
\usepackage{amsmath}
\begin{document}
\[ \left( x+1 \right) \dots \left( x+8 \right). \]
\end{document}

Several errors are thrown, the first of which are:

! Argument of \zap@to@space has an extra }.
<inserted text> 
                \par 
l.6 \[ \left( x+1 \right) \dots \left
                                     ( x+8 \right). \]
? 
Runaway argument?
\left..........
! Paragraph ended before \zap@to@space was complete.
<to be read again> 
                   \par 
l.6 \[ \left( x+1 \right) \dots \left
                                     ( x+8 \right). \]
? 

In addition, any of the following appear to cause the issue to go away:

  • Changing from scrartcl to article
  • Removing the line \usepackage{amsmath}
  • Not using \left( and \right)
  • Using an earlier version of TeXLive

I'm assuming this is a bug somewhere, but I'm not sure how to fix it (other than just manually using \cdots instead of \dots, I suppose). Does anyone have any ideas on how to make things behave the way they should?

[EDIT: to clarify, compiling with PDFLaTeX, on TeX Live 2016, Arch Linux.]

9
  • 1
    Can confirm on Ubuntu 1604.
    – JPi
    Aug 15, 2016 at 20:45
  • 3
    there were some changes to the definition of \dots in amsmath for tex live 2016, required by some changes in luatex that i can't really explain. but the changes were iterative, and your result may depend on when various files were installed on your system. i'm pinging @DavidCarlisle to take a look at this; he knows the details. Aug 15, 2016 at 20:47
  • 1
    Btw, it works fine if you load amsmath like this: \documentclass[amsmath,11pt]{scrartcl}
    – JPi
    Aug 15, 2016 at 20:49
  • 1
    To clarify, TeX Live 2016 on Arch Linux, compiling with PDFLaTeX. Also, the comment by JPi works for me as well.
    – Evan Chen
    Aug 15, 2016 at 20:58
  • 2
    @JPi scrartcl doesn't appear to have an amsmath option, so that's just same as not specifying amsmath isn't it? Aug 15, 2016 at 22:04

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