the \less latex symbol doesn't show properly in firefox . (it is in the latex A4 manual table 97) example $ \forall x \exists y (x \less y) $
Or am I making a simple mistake (would not be the first time)
The answer was given by Daniel R in the comment. Expanding it a bit: you can use
$\gt$for $\lt$ and $\gt$.
$\ge$for $\le$ and $\ge$. Or
$\geq$for the same effect.
As an aside, I will [sort of] answer Arthur Fisher's comment by copying it from the HTML source of this page:
What's wrong with simply using
$<$ to produce $<$?