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What is the correct way of having all operator names be set in, say, sans serif? Saying

An $\operator 1$.

seems to do the trick, but amsopn.sty defines


which seems to do more...

It would be nice if there were a @-free way of doing this, by the way.

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/me sighs... CAPTCHAS are starting to make it obvious that I am not human: I had to try 6 until I finally got it right: they are too difficult :/ –  Mariano Suárez-Alvarez Feb 1 '12 at 23:32
You need to redefine \operator@font, which is used in other macros with that name. Either use \makeatletter and \makeatother or rewrite amsopn.sty in order not to use \operator@font. I guess that the choice is easy. :) –  egreg Feb 2 '12 at 0:02

1 Answer 1

You can define a new symbol font, and also redefine \mathsf to use it, otherwise you'd waste a math group and there are only 16 of them:


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