Hi I want to write this:

alt text

So I wrote this:


Without success, (I get errors/warning) How do I write the apostrophe in Latex?


closed as unclear what you're asking by Andrew Swann, siracusa, TeXnician, Bobyandbob, Milo Aug 29 '18 at 10:49

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  • 2
    It works without errors. Can you please add a minimal example that illustrates your problem? – Hendrik Vogt Jan 15 '11 at 13:40
  • It seems that my file got corrupted or so... I don't know but It works now after I restored it to a past version ;) – nacho4d Jan 15 '11 at 14:57

You could use \prime:


$\{m'_{i}\}$ works for me as well.

  • 1
    I would promote the use of ^\prime since ' does exactly this. – Hendrik Vogt Jan 15 '11 at 13:43
  • @Hendrik: yes, can be read in latex.ltx where \active@math@prime is defined. Though similarly one could write _\prime and this time there's no shortcut, so it could be good to know about \prime and it's worth a try if ' doesn't work as expected any more. – Stefan Kottwitz Jan 15 '11 at 13:50

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