# Undefined control sequence when showing multiplication table

Using Sage Version 5.12,

```
sage: Z5=Integers(5)
sage: show(Z5.multiplication_table())
```

The output is:

```
An error occurred.
This is pdfTeX, Version 3.1415926-2.4-1.40.13 (TeX Live 2012/Debian) (format=pdflatex 2013.11.25)
(...)
! Undefined control sequence.
<argument> 2\ex
l.40 ...ace{40mm}\[{\setlength{\arraycolsep}{2\ex}
(...)
```

How to get a table to display correctly with show?