TeX - LaTeX Stack Exchange is a question and answer site for users of TeX, LaTeX, ConTeXt, and related typesetting systems. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

What is the LaTeX syntax for Karp reduction (i.e. the lesser than sign with curved lines instead of straight lines)?

share|improve this question
Please see this: tex.stackexchange.com/questions/14/how-to-look-up-a-math-symbol and I think you're looking for \succ or \prec and their friends: \succeq,\preceq – Seamus Aug 8 '11 at 10:34
@Seamus: Thanks. Could u post this as an answer so that this gets an answer? – user1876 Aug 8 '11 at 10:38
Purely for making it easy for people to find that canonical symbol-lookup question, I'm voting to close as a duplicate. – Loop Space Aug 8 '11 at 11:05
up vote 4 down vote accepted

In future, there are a number of ways to look up a symbol.

The "bendy inequality" symbols are:

\succ, \prec, \succeq and \preceq.

bendy inequalities

If you like the eq variants to bend too, then (with the help of the amssymb package you can:

$\succ \prec \succeq \preceq \succcurlyeq \preccurlyeq$

more bendy inequalities

share|improve this answer
Aesthetically, you may also prefer (as I do) the symbols \succcurlyeq and \preccurlyeq to their "non-curly" equivalents. – Niel de Beaudrap Aug 8 '11 at 10:48
@Niels thanks for that! I couldn't remember what the command for them was. – Seamus Aug 8 '11 at 10:56
Me neither, so I DeTeXified it. ;-) – Niel de Beaudrap Aug 8 '11 at 10:58
@Seamus: Thanks. I have used DeTexify in the past but I completely forgot about it. DeTexify goes into my bookmark tab now. – user1876 Aug 8 '11 at 11:15

\propto is Karp Reduction in LaTeX.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.