Possible Duplicate:
More aesthetic (perhaps shallower) superscript check symbol

In the notation for the "dual" of something, I want to use check, like $X^{v}$, with the v replaced by a check. I tried \check, \v... but no one works.

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## marked as duplicate by egreg, Stefan Kottwitz♦Oct 5 '12 at 7:19

Welcome to TeX.SE. Are you just looking for a checkmark symbol such as \checkmark? – Peter Grill Oct 5 '12 at 6:31
– Werner Oct 5 '12 at 6:34
No... it looks like a v, with two sides of equal length, but it is a specific symbol, not just v. – hyh Oct 5 '12 at 6:34
@Werner Yes that works. I think \vee is good enough. If you think it is duplicate you can close it now. – hyh Oct 5 '12 at 6:36

\documentclass{article}
$\vee \bigvee \conjunction$