Question

For example, in http://homepages.cwi.nl/~paulv/papers/algorithmicstatistics.pdf at the bottom of page 5 and top of page 6, he uses a plus/equal symbol and a similar plus/lessthan symbol. I can’t figure out how to make that symbol, and I’d like to quote him.

Any help?

Answer 1

Try $\stackrel{top}{bottom}$

You’d want something like this:

$X \stackrel{+}{=} Y$ 

This positions the plus sign above the equals sign. For example, the following code:

$K(x,y|z) \stackrel{+}{=} K(x|z) \stackrel{+}{<} I(x:y|z)$ 

produces the following output: