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enter image description hereI am looking for a "squished" three-line equality symbol, \equiv, as in the picture below. Is it possible to produce such a symbol without it looking too similar to equality and \equiv? Ideally, it will also be lengthened a bit horizontally.

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  • \Equiv in unicode-math is a four bar symbol which will always be more visually distinct than a three bar variation, so could be an option? Commented Jun 12 at 18:02
  • @DavidCarlisle I don’t really want four lines, though, since four lines takes up too much vertical space.
    – John
    Commented Jun 12 at 18:47
  • @campa Essentially all I am looking for is the (three) lines that make up \equiv to be closer together. I do not want them to be tilde-like.
    – John
    Commented Jun 12 at 19:29
  • 1
    Ah, OK, vote retracted. But that is really not clear from your low-resolution photo...
    – campa
    Commented Jun 12 at 19:31
  • @campa Sorry. Maybe I can't draw well.
    – John
    Commented Jun 12 at 20:28

1 Answer 1

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Put two \equiv signs with some backup in the middle.

\documentclass{article}

\newcommand{\Equiv}{\equiv\joinrel\equiv}

\begin{document}

$a = b$

$a \equiv b$

$a \Equiv b$

\end{document}

enter image description here

The amount of backing up is 3mu. If you want a shorter symbol, try

\documentclass{article}

\newcommand{\Equiv}{\equiv\mathrel{\mkern-9mu}\equiv}

\begin{document}

$a = b$

$a \equiv b$

$a \Equiv b$

\end{document}

enter image description here

Experiment with the amount.

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