I just wonder what the code for the symbol _| is. (The symbol besides v in the picture below.)

enter image description here

Thanks a lot.

marked as duplicate by Tobi, Phelype Oleinik, Raaja, Zarko, CampanIgnis May 3 at 15:23

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I think it’s \lrcorner from amssymb



\[\oint v_\lrcorner \dots \]

\verb|\lrcorner| $\lrcorner$

\verb|\llcorner| $\llcorner$

\verb|\urcorner| $\urcorner$

\verb|\ulcorner| $\ulcorner$


I found it in the LaTeX symbol list, cf. How to look up a symbol or identify a math symbol or character?

  • Heh... Just figured it out from the big list now. :( – kan Apr 7 '12 at 22:57
  • @KannappanSampath That's why we insist on asking the users to pose the questions properly. It might sound snobbish at first sight but it makes sure that effort and time of our answerers don't get wasted. Please persuade more next time :-) – percusse Apr 7 '12 at 23:07

The third and possibly the last edit:

The four AMS delimiters in the same order as they appear in the picture: \ulcorner;\urcorner;\llcornerand $\lrcorner$ : enter image description here

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